add --html-path to get the location of installed HTML docs

This can be used in GUIs to open installed HTML documentation in the
browser.

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/perl/Git.pm b/perl/Git.pm
index 7d7f2b1..291ff5b 100644
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -56,7 +56,7 @@
 @EXPORT_OK = qw(command command_oneline command_noisy
                 command_output_pipe command_input_pipe command_close_pipe
                 command_bidi_pipe command_close_bidi_pipe
-                version exec_path hash_object git_cmd_try
+                version exec_path html_path hash_object git_cmd_try
                 remote_refs
                 temp_acquire temp_release temp_reset temp_path);
 
@@ -492,6 +492,16 @@
 sub exec_path { command_oneline('--exec-path') }
 
 
+=item html_path ()
+
+Return path to the Git html documentation (the same as
+C<git --html-path>). Useful mostly only internally.
+
+=cut
+
+sub html_path { command_oneline('--html-path') }
+
+
 =item repo_path ()
 
 Return path to the git repository. Must be called on a repository instance.