sipp: fix an important typo in the PKGBUILD
Merge pull request #728 from samlt/sipp

sipp: fix an important typo in the PKGBUILD
Merge pull request #729 from c2ypt1c/master

updated zaproxy pkgbuild for latest release
added missing dependency
sipp: Fix style.
zaproxy: Fix style.

This
  - quotes $pkgdir and $srcdir
  - uses exec in the joint script
  - s/=//
  - s/${var}/$var/
  - s/${pkgname}/zaproxy/
zaproxy: Unset _JAVA_OPTIONS in the joint script.

zap.sh parses the output of java -version for version information. If
_JAVA_OPTIONS is set, the parsing breaks.
official: Add steghide.
TODO: Add two items.