Merge branch 'maint'

* maint:
  t/t9001-send-email.sh: fix stderr redirection in 'Invalid In-Reply-To'
  Clarify and extend the "git diff" format documentation
  git-show-ref.txt: clarify the pattern matching
  documentation: git-config minor cleanups
  Update test script annotate-tests.sh to handle missing/extra authors

Author: gitster

Documentation/config.txt

@@ -1560,12 +1560,12 @@ push.default::
 	no refspec is implied by any of the options given on the command
 	line. Possible values are:
 +
-* `nothing` do not push anything.
-* `matching` push all matching branches.
+* `nothing` - do not push anything.
+* `matching` - push all matching branches.
   All branches having the same name in both ends are considered to be
   matching. This is the default.
-* `tracking` push the current branch to its upstream branch.
-* `current` push the current branch to a branch of the same name.
+* `tracking` - push the current branch to its upstream branch.
+* `current` - push the current branch to a branch of the same name.
 
 rebase.stat::
 	Whether to show a diffstat of what changed upstream since the last
@@ -1765,9 +1765,9 @@ status.showUntrackedFiles::
 	the untracked files. Possible values are:
 +
 --
-	- 'no'     - Show no untracked files
-	- 'normal' - Shows untracked files and directories
-	- 'all'    - Shows also individual files in untracked directories.
+* `no` - Show no untracked files.
+* `normal` - Show untracked files and directories.
+* `all` - Show also individual files in untracked directories.
 --
 +
 If this variable is not specified, it defaults to 'normal'.

Documentation/diff-generate-patch.txt

@@ -9,16 +9,15 @@ patch file.  You can customize the creation of such patches via the
 GIT_EXTERNAL_DIFF and the GIT_DIFF_OPTS environment variables.
 
 What the -p option produces is slightly different from the traditional
-diff format.
+diff format:
 
-1.   It is preceded with a "git diff" header, that looks like
-     this:
+1.   It is preceded with a "git diff" header that looks like this:
 
        diff --git a/file1 b/file2
 +
 The `a/` and `b/` filenames are the same unless rename/copy is
 involved.  Especially, even for a creation or a deletion,
-`/dev/null` is _not_ used in place of `a/` or `b/` filenames.
+`/dev/null` is _not_ used in place of the `a/` or `b/` filenames.
 +
 When rename/copy is involved, `file1` and `file2` show the
 name of the source file of the rename/copy and the name of
@@ -37,18 +36,39 @@ the file that rename/copy produces, respectively.
        similarity index <number>
        dissimilarity index <number>
        index <hash>..<hash> <mode>
-
-3.  TAB, LF, double quote and backslash characters in pathnames
-    are represented as `\t`, `\n`, `\"` and `\\`, respectively.
-    If there is need for such substitution then the whole
-    pathname is put in double quotes.
-
++
+File modes are printed as 6-digit octal numbers including the file type
+and file permission bits.
++
+Path names in extended headers do not include the `a/` and `b/` prefixes.
++
 The similarity index is the percentage of unchanged lines, and
 the dissimilarity index is the percentage of changed lines.  It
 is a rounded down integer, followed by a percent sign.  The
 similarity index value of 100% is thus reserved for two equal
 files, while 100% dissimilarity means that no line from the old
 file made it into the new one.
++
+The index line includes the SHA-1 checksum before and after the change.
+The <mode> is included if the file mode does not change; otherwise,
+separate lines indicate the old and the new mode.
+
+3.  TAB, LF, double quote and backslash characters in pathnames
+    are represented as `\t`, `\n`, `\"` and `\\`, respectively.
+    If there is need for such substitution then the whole
+    pathname is put in double quotes.
+
+4.  All the `file1` files in the output refer to files before the
+    commit, and all the `file2` files refer to files after the commit.
+    It is incorrect to apply each change to each file sequentially.  For
+    example, this patch will swap a and b:
+
+      diff --git a/a b/b
+      rename from a
+      rename to b
+      diff --git a/b b/a
+      rename from b
+      rename to a
 
 
 combined diff format

Documentation/git-show-ref.txt

@@ -84,7 +84,11 @@ OPTIONS
 
 <pattern>...::
 
-	Show references matching one or more patterns.
+	Show references matching one or more patterns. Patterns are matched from
+	the end of the full name, and only complete parts are matched, e.g.
+	'master' matches 'refs/heads/master', 'refs/remotes/origin/master',
+	'refs/tags/jedi/master' but not 'refs/heads/mymaster' nor
+	'refs/remotes/master/jedi'.
 
 OUTPUT
 ------

t/annotate-tests.sh

@@ -8,27 +8,27 @@ check_count () {
 	$PROG file $head >.result || return 1
 	cat .result | perl -e '
 		my %expect = (@ARGV);
-		my %count = ();
+		my %count = map { $_ => 0 } keys %expect;
 		while (<STDIN>) {
 			if (/^[0-9a-f]+\t\(([^\t]+)\t/) {
 				my $author = $1;
 				for ($author) { s/^\s*//; s/\s*$//; }
-				if (exists $expect{$author}) {
-					$count{$author}++;
-				}
+				$count{$author}++;
 			}
 		}
 		my $bad = 0;
 		while (my ($author, $count) = each %count) {
 			my $ok;
-			if ($expect{$author} != $count) {
+			my $value = 0;
+			$value = $expect{$author} if defined $expect{$author};
+			if ($value != $count) {
 				$bad = 1;
 				$ok = "bad";
 			}
 			else {
 				$ok = "good";
 			}
-			print STDERR "Author $author (expected $expect{$author}, attributed $count) $ok\n";
+			print STDERR "Author $author (expected $value, attributed $count) $ok\n";
 		}
 		exit($bad);
 	' "$@"

t/t9001-send-email.sh

@@ -279,7 +279,7 @@ test_expect_success $PREREQ 'Invalid In-Reply-To' '
 		--to=nobody@example.com \
 		--in-reply-to=" " \
 		--smtp-server="$(pwd)/fake.sendmail" \
-		$patches
+		$patches \
 		2>errors
 	! grep "^In-Reply-To: < *>" msgtxt1
 '