manual: fix minor typo in AC_CONFIG_SUBDIRS example

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 2dfd20fd297109eb08f25c560fec8f189c766dea..90bd327e292d3ae5ffdc4c37c3f77008f3bf0a29 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -3616,7 +3616,7 @@ be a literal, i.e., please do not use:
 
 @example
 if test "x$package_foo_enabled" = xyes; then
-  $my_subdirs="$my_subdirs foo"
+  my_subdirs="$my_subdirs foo"
 fi
 AC_CONFIG_SUBDIRS([$my_subdirs])
 @end example