qemu-img: Fix stale comments on doc location

Missed in commit e13c59fa.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513011648.166876-3-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

qemu-img-cmds.hx

@@ -7,7 +7,7 @@ HXCOMM command structures and help message.
 HXCOMM HXCOMM can be used for comments, discarded from both rST and C
 
 HXCOMM When amending the rST sections, please remember to copy the usage
-HXCOMM over to the per-command sections in qemu-img.texi.
+HXCOMM over to the per-command sections in docs/tools/qemu-img.rst.
 
 DEF("amend", img_amend,
     "amend [--object objectdef] [--image-opts] [-p] [-q] [-f fmt] [-t cache] -o options filename")

qemu-img.c

@@ -108,7 +108,7 @@ static void QEMU_NORETURN unrecognized_option(const char *option)
     error_exit("unrecognized option '%s'", option);
 }
 
-/* Please keep in synch with qemu-img.texi */
+/* Please keep in synch with docs/tools/qemu-img.rst */
 static void QEMU_NORETURN help(void)
 {
     const char *help_msg =