ffs.c, fnmatch.txh, getruntime.c, make-temp-file.c,
mkstemps.c, pexecute.c, random.c, strsitnal.c, vasprintf.c:
Improve manual formatting.
* functions.texi: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46323 138bc75d-0d04-0410-961f-82ee72b054a4