Merge branch 'maint'

* maint:
  sha1_file: link() returns -1 on failure, not errno
  Make git archive respect core.autocrlf when creating zip format archives
  Add new test to demonstrate git archive core.autocrlf inconsistency
  gitweb: avoid warnings for commits without body
  Clarified gitattributes documentation regarding custom hunk header.
  git-svn: fix handling of even funkier branch names
  git-svn: Always create a new RA when calling do_switch for svn://
  git-svn: factor out svnserve test code for later use
  diff/diff-files: do not use --cc too aggressively

t/lib-git-svn.sh

@@ -138,3 +138,20 @@ close $wr or die $!;
 close $rd or die $!;
 EOF
 }
+
+require_svnserve () {
+    if test -z "$SVNSERVE_PORT"
+    then
+        say 'skipping svnserve test. (set $SVNSERVE_PORT to enable)'
+        test_done
+        exit
+    fi
+}
+
+start_svnserve () {
+    svnserve --listen-port $SVNSERVE_PORT \
+             --root "$rawsvnrepo" \
+             --listen-once \
+             --listen-host 127.0.0.1 &
+}
+