MFC r295119:Remove `r_tmp` to fix a -Wunused-but-set-variable warning with gcc 4.9
MFC r289677: Fix a ton of speelling errors
MFC r277674:r277674 (by ngie): Fix building rcorder with -DDEBUG by using libutil.h instead of util.h from usr.bin/make Sponsored by: EMC / Isilon Storage Division