Merge branch 'maint'

* maint:
  post-receive-email: fix accidental removal of a trailing space in signature line
  Escape project names before creating pathinfo URLs
  Escape project name in regexp
  bash: Add completion for git diff --base --ours --theirs
  diff-options.txt: document the new "--dirstat" option

Documentation/diff-options.txt

@@ -58,6 +58,14 @@ endif::git-format-patch[]
 	number of modified files, as well as number of added and deleted
 	lines.
 
+--dirstat[=limit]::
+	Output only the sub-directories that are impacted by a diff,
+	and to what degree they are impacted.  You can override the
+	default cut-off in percent (3) by "--dirstat=limit".  If you
+	want to enable "cumulative" directory statistics, you can use
+	the "--cumulative" flag, which adds up percentages recursively
+	even when they have been already reported for a sub-directory.
+
 --summary::
 	Output a condensed summary of extended header information
 	such as creations, renames and mode changes.

contrib/completion/git-completion.bash

@@ -641,6 +641,7 @@ _git_diff ()
 			--ignore-all-space --exit-code --quiet --ext-diff
 			--no-ext-diff
 			--no-prefix --src-prefix= --dst-prefix=
+			--base --ours --theirs
 			"
 		return
 		;;

contrib/hooks/post-receive-email

@@ -202,11 +202,12 @@ generate_email_header()
 
 generate_email_footer()
 {
+	SPACE=" "
 	cat <<-EOF
 
 
 	hooks/post-receive
-	--
+	--${SPACE}
 	$projectdesc
 	EOF
 }

gitweb/gitweb.perl

@@ -511,7 +511,7 @@ sub evaluate_path_info {
 	}
 	# do not change any parameters if an action is given using the query string
 	return if $action;
-	$path_info =~ s,^$project/*,,;
+	$path_info =~ s,^\Q$project\E/*,,;
 	my ($refname, $pathname) = split(/:/, $path_info, 2);
 	if (defined $pathname) {
 		# we got "project.git/branch:filename" or "project.git/branch:dir/"
@@ -633,7 +633,7 @@ (%)
 	my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 	if ($use_pathinfo) {
 		# use PATH_INFO for project name
-		$href .= "/$params{'project'}" if defined $params{'project'};
+		$href .= "/".esc_url($params{'project'}) if defined $params{'project'};
 		delete $params{'project'};
 
 		# Summary just uses the project path URL
@@ -2575,7 +2575,7 @@ sub git_header_html {
 		my $action = $my_uri;
 		my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 		if ($use_pathinfo) {
-			$action .= "/$project";
+			$action .= "/".esc_url($project);
 		} else {
 			$cgi->param("p", $project);
 		}