iputils: fix typo in libintl comment

The sentence should end with a dot (.) and not a comma (,).

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/iputils/iputils.mk

@@ -39,7 +39,7 @@ IPUTILS_DEPENDENCIES += libgcrypt
 # When gettext is enabled (BR2_PACKAGE_GETTEXT=y), and provides libintl
 # (BR2_NEEDS_GETTEXT=y), libgpg-error will link with libintl, and libgpg-error
 # is pulled in by libgcrypt. Since iputils doesn't use libtool, we have to link
-# with libintl explicitly for static linking,
+# with libintl explicitly for static linking.
 ifeq ($(BR2_STATIC_LIBS)$(BR2_NEEDS_GETTEXT)$(BR2_PACKAGE_GETTEXT),yyy)
 IPUTILS_MAKE_OPTS += ADDLIB='-lintl'
 endif