m4: Update serials for modified files

m4/libtool.m4

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 96fc088..def2c24 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -32,7 +32,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ])
 
-# serial 63 LT_INIT
+# serial 64 LT_INIT
 
 
 # LT_PREREQ(VERSION)

m4/ltoptions.m4

diff --git a/m4/ltoptions.m4 b/m4/ltoptions.m4
index 925415a..725d14b 100644
--- a/m4/ltoptions.m4
+++ b/m4/ltoptions.m4
@@ -8,7 +8,7 @@
 # unlimited permission to copy and/or distribute it, with or without
 # modifications, as long as this notice is preserved.
 
-# serial 10 ltoptions.m4
+# serial 11 ltoptions.m4
 
 # This is to help aclocal find these macros, as it can't see m4_define.
 AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])