libiberty.texi: (Top level): Add syncodeindex pg.

libiberty.texi: (Top level): Add syncodeindex pg.

* libiberty.texi: (Top level): Add syncodeindex pg.  Add
@dircategory and @direntry directives.  Add @finalout.
(many nodes): Lose the next,prev,up pointers on the @nide line.
(Using, Supplemental Functions, Replacement Functions): Fix
markup.
(Functions): Move around, to allow makeinfo to build the manual
without next,prev,up pointers in thye node lines.
(Licenses): Fix typos.

* index.c, rindex.c, strchr.c, strerror.c, strrchr.c, strstr.c,
strtol.c, xatexit.c, xexit.c, xmalloc.c: Fix spelling and markup.
* functions.texi: Regenerate.

* copying-lib.texi: Lose the next,prev,up pointers on the @node
line.

From-SVN: r45847