Explictly include GIO in command-not-found too

Added GIO to LDADD to try and fix a weird
linker error on Debian.

contrib/command-not-found/Makefile.am

@@ -3,6 +3,7 @@ AUTOMAKE_OPTIONS = 1.7
 
 INCLUDES =						\
 	$(GLIB_CFLAGS)					\
+	$(GIO_CFLAGS)					\
 	$(DBUS_CFLAGS)					\
 	$(SQLITE_CFLAGS)				\
 	-DI_KNOW_THE_PACKAGEKIT_GLIB2_API_IS_SUBJECT_TO_CHANGE	\
@@ -27,6 +28,7 @@ pk_command_not_found_SOURCES =				\
 
 pk_command_not_found_LDADD =				\
 	$(GLIB_LIBS)					\
+	$(GIO_LIBS)					\
 	$(DBUS_LIBS)					\
 	$(PK_GLIB2_LIBS)				\
 	$(NULL)