[committed] LD/doc: Add missing `--push-state' option markup

[Maciej W. Rozycki]

There is a missing option markup for a `--push-state' reference in the 
description of the `--pop-state' option, fix it.
---
Verified with `info' and PDF output, applied as obvious.
---
 ld/ld.texi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

binutils-ld-doc-pop-state.diff
Index: binutils-gdb/ld/ld.texi
===================================================================
--- binutils-gdb.orig/ld/ld.texi
+++ binutils-gdb/ld/ld.texi
@@ -1085,8 +1085,8 @@ listed and then possibly linked with all
 @kindex --pop-state
 @cindex pop state governing input file handling
 @item --pop-state
-Undoes the effect of --push-state, restores the previous values of the
-flags governing input file handling.
+Undoes the effect of @option{--push-state}, restores the previous values
+of the flags governing input file handling.
 
 @kindex -q
 @kindex --emit-relocs