Merge branch 'jn/request-pull'

* jn/request-pull:
  tests: chmod +x t5150
  adapt request-pull tests for new pull request format
  t5150: protect backslash with backslash in shell
  request-pull: protect against OPTIONS_KEEPDASHDASH from environment
  tests for request-pull

contrib/git-resurrect.sh

@@ -9,6 +9,7 @@ other/Merge <other> into <name> (respectively) commit subjects, which
 is rather slow but allows you to resurrect other people's topic
 branches."
 
+OPTIONS_KEEPDASHDASH=
 OPTIONS_SPEC="\
 git resurrect $USAGE
 --