mit-scheme: Fix file not found warning in inreplace

Closes #29574.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
sl 5.01

Closes #29577.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
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.