parallel 20140522

Closes #29578.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
rxvt-unicode 9.20
rxvt-unicode: remove caveats
rxvt-unicode: fix install target
rxvt-unicode: disable perl when compiling with clang

Closes #27955.
netcat6: remove popen, use assert_equal, add assertion for exitstatus
netcat6: add 1.0 bottle.