Merge branch 'maint'

* maint: improve error message in config.c t4018-diff-funcname: add cpp xfuncname pattern to syntax test Work around BSD whose typeof(tv.tv_sec) != time_t git-am.txt: reword extra headers in message body git-am.txt: Use date or value instead of time or timestamp git-am.txt: add an 'a', say what 'it' is, simplify a sentence dir.c: Fix two minor grammatical errors in comments git-svn: fix a sloppy Getopt::Long usage