Fix test output for updated gitdiffs help and web template cleanups

tests/test-globalopts.out

@@ -205,7 +205,7 b' additional help topics:'
  environment  Environment Variables
  revisions    Specifying Single Revisions
  multirevs    Specifying Multiple Revisions
- gitdiffs     Using git Diffs
+ gitdiffs     Git Extended Diff Format
 
 use "hg -v help" to show aliases and global options
 Mercurial Distributed SCM
@@ -268,7 +268,7 b' additional help topics:'
  environment  Environment Variables
  revisions    Specifying Single Revisions
  multirevs    Specifying Multiple Revisions
- gitdiffs     Using git Diffs
+ gitdiffs     Git Extended Diff Format
 
 use "hg -v help" to show aliases and global options
 %% not tested: --debugger

tests/test-help.out

@@ -96,7 +96,7 b' additional help topics:'
  environment  Environment Variables
  revisions    Specifying Single Revisions
  multirevs    Specifying Multiple Revisions
- gitdiffs     Using git Diffs
+ gitdiffs     Git Extended Diff Format
 
 use "hg -v help" to show aliases and global options
  add          add the specified files on the next commit
@@ -155,7 +155,7 b' additional help topics:'
  environment  Environment Variables
  revisions    Specifying Single Revisions
  multirevs    Specifying Multiple Revisions
- gitdiffs     Using git Diffs
+ gitdiffs     Git Extended Diff Format
 hg add [OPTION]... [FILE]...
 
 add the specified files on the next commit

tests/test-hgweb.out

@@ -208,7 +208,7 b' ul#nodebgs {'
 	margin: 0;
 	top: -0.7em;
 }
- 
+
 ul#graphnodes li, ul#nodebgs li {
 	height: 39px;
 }