`  :Rather than attacking other people and trying to make your typical promotional edits, you should learn how to use reliable sources. If you did ever try to inform yourself about ``patch`` on POSIX certified platforms, you did of course know that these platforms (e.g. Solaris, HP-UX. AIX) do not use and cannot use the non-POSIX gpatch as their official patch implementation; they instead use the closed source implementation original owned by IBM, Sun and the OSF. Sun meanwhile merged with Oracle and the OSF merged with the OpenGroup. My impression is that you revert the text because you don't like to see that gpatch happily ignores POSIX rules for patch even when called with posix.   :Is there really no chance that you become a collaborative and constructive member of the WP community?   `