Fixed compiler warning.

git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@16694 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
Added '(' and ')' to the whitelist of SanitizeSystemCommand.
Removed SanitizeDelegateCommand because this is already done by SystemCommand.

git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@16697 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
Fixed typo's.

git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@16699 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74