Clean up inreplace regexps

 - use literal syntax
 - escape interpolated variables
 - remove intermediate variables
 - remove unnecessary capture
nginx 1.6.2/--devel 1.7.5

CVE-2014-3616
nginx: update 1.6.2 bottle.

Closes #32700.
Add formula for libmodplug, with two tests.
libmodplug: add 0.8.8.5 bottle.