Documentation: Split description of pretty formats of commit log

Split description of pretty formats into list of pretty options
(--pretty and --encoding) in new file Documentation/pretty-options.txt
and description of formats itself as a separate "PRETTY FORMATS"
section in pretty-formats.txt

While at it correct formatting a bit, to be better laid out in the
resulting manpages: git-rev-list(1), git-show(1), git-log(1) and
git-diff-tree(1).  Those manpages now include pretty options in the
same place as it was before, and description of formats just after
all options.

Inspired by the split into two filesdocumentation for merge strategies:
Documentation/merge-options.txt and Documentation/merge-strategies.txt

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-diff-tree.txt

@@ -73,7 +73,7 @@ separated with a single space are given.
 	This flag causes "git-diff-tree --stdin" to also show
 	the commit message before the differences.
 
-include::pretty-formats.txt[]
+include::pretty-options.txt[]
 
 --no-commit-id::
 	git-diff-tree outputs a line with the commit ID when
@@ -104,6 +104,9 @@ include::pretty-formats.txt[]
 	if the diff itself is empty.
 
 
+include::pretty-formats.txt[]
+
+
 Limiting Output
 ---------------
 If you're only interested in differences in a subset of files, for

Documentation/git-log.txt

@@ -25,7 +25,7 @@ This manual page describes only the most frequently used options.
 OPTIONS
 -------
 
-include::pretty-formats.txt[]
+include::pretty-options.txt[]
 
 -<n>::
 	Limits the number of commits to show.
@@ -58,6 +58,9 @@ include::pretty-formats.txt[]
 	Show only commits that affect the specified paths.
 
 
+include::pretty-formats.txt[]
+
+
 Examples
 --------
 git log --no-merges::

Documentation/git-rev-list.txt

@@ -87,7 +87,7 @@ Using these options, gitlink:git-rev-list[1] will act similar to the
 more specialized family of commit log tools: gitlink:git-log[1],
 gitlink:git-show[1], and gitlink:git-whatchanged[1]
 
-include::pretty-formats.txt[]
+include::pretty-options.txt[]
 
 --relative-date::
 
@@ -367,6 +367,10 @@ These options are mostly targeted for packing of git repositories.
 	Only useful with '--objects'; print the object IDs that are not
 	in packs.
 
+
+include::pretty-formats.txt[]
+
+
 Author
 ------
 Written by Linus Torvalds <torvalds@osdl.org>

Documentation/git-show.txt

@@ -38,6 +38,9 @@ OPTIONS
 	For a more complete list of ways to spell object names, see
 	"SPECIFYING REVISIONS" section in gitlink:git-rev-parse[1].
 
+include::pretty-options.txt[]
+
+
 include::pretty-formats.txt[]
 
 

Documentation/pretty-formats.txt

@@ -1,31 +1,32 @@
---pretty[='<format>']::
+PRETTY FORMATS
+--------------
 
-        Pretty-prints the details of a commit.  `--pretty`
-	without an explicit `=<format>` defaults to 'medium'.
-	If the commit is a merge, and if the pretty-format
-        is not 'oneline', 'email' or 'raw', an additional line is
-        inserted before the 'Author:' line.  This line begins with
-        "Merge: " and the sha1s of ancestral commits are printed,
-        separated by spaces.  Note that the listed commits may not
-        necessarily be the list of the *direct* parent commits if you
-        have limited your view of history: for example, if you are
-        only interested in changes related to a certain directory or
-        file.  Here are some additional details for each format:
+If the commit is a merge, and if the pretty-format
+is not 'oneline', 'email' or 'raw', an additional line is
+inserted before the 'Author:' line.  This line begins with
+"Merge: " and the sha1s of ancestral commits are printed,
+separated by spaces.  Note that the listed commits may not
+necessarily be the list of the *direct* parent commits if you
+have limited your view of history: for example, if you are
+only interested in changes related to a certain directory or
+file.
 
-        * 'oneline'
+Here are some additional details for each format:
+
+* 'oneline'
 
 	  <sha1> <title line>
 +
 This is designed to be as compact as possible.
 
-        * 'short'
+* 'short'
 
 	  commit <sha1>
 	  Author: <author>
 
 	      <title line>
 
-        * 'medium'
+* 'medium'
 
 	  commit <sha1>
 	  Author: <author>
@@ -35,7 +36,7 @@ This is designed to be as compact as possible.
 
 	      <full commit message>
 
-        * 'full'
+* 'full'
 
 	  commit <sha1>
 	  Author: <author>
@@ -45,7 +46,7 @@ This is designed to be as compact as possible.
 
 	      <full commit message>
 
-        * 'fuller'
+* 'fuller'
 
 	  commit <sha1>
 	  Author: <author>
@@ -57,18 +58,16 @@ This is designed to be as compact as possible.
 
 	       <full commit message>
 
-
-        * 'email'
+* 'email'
 
 	  From <sha1> <date>
 	  From: <author>
 	  Date: <date & time>
 	  Subject: [PATCH] <title line>
 
-	  full commit message>
+	  <full commit message>
 
-
-	* 'raw'
+* 'raw'
 +
 The 'raw' format shows the entire commit exactly as
 stored in the commit object.  Notably, the SHA1s are
@@ -77,19 +76,22 @@ displayed in full, regardless of whether --abbrev or
 true parent commits, without taking grafts nor history
 simplification into account.
 
-	* 'format:'
+* 'format:'
 +
 The 'format:' format allows you to specify which information
 you want to show. It works a little bit like printf format,
 with the notable exception that you get a newline with '%n'
 instead of '\n'.
-
-E.g, 'format:"The author of %h was %an, %ar%nThe title was >>%s<<"'
++
+E.g, 'format:"The author of %h was %an, %ar%nThe title was >>%s<<%n"'
 would show something like this:
-
++
+-------
 The author of fe6e0ee was Junio C Hamano, 23 hours ago
 The title was >>t4119: test autocomputing -p<n> for traditional diff input.<<
 
+--------
++
 The placeholders are:
 
 - '%H': commit hash
@@ -120,11 +122,3 @@ The placeholders are:
 - '%m': left, right or boundary mark
 - '%n': newline
 
-
---encoding[=<encoding>]::
-	The commit objects record the encoding used for the log message
-	in their encoding header; this option can be used to tell the
-	command to re-code the commit log message in the encoding
-	preferred by the user.  For non plumbing commands this
-	defaults to UTF-8.
-

Documentation/pretty-options.txt

@@ -0,0 +1,14 @@
+--pretty[='<format>']::
+
+	Pretty print the contents of the commit logs in a given format,
+	where '<format>' can be one of 'oneline', 'short', 'medium',
+	'full', 'fuller', 'email', 'raw' and 'format:<string>'.
+	When left out the format default to 'medium'.
+
+--encoding[=<encoding>]::
+	The commit objects record the encoding used for the log message
+	in their encoding header; this option can be used to tell the
+	command to re-code the commit log message in the encoding
+	preferred by the user.  For non plumbing commands this
+	defaults to UTF-8.
+