schema/Makefile: Replace MySQL with SQLite in comment

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

schema/Makefile

@@ -3,6 +3,7 @@ aur-schema-sqlite.sql: aur-schema.sql
 		-e 's/ ENGINE = InnoDB//' \
 		-e 's/ [A-Z]* UNSIGNED NOT NULL AUTO_INCREMENT/ INTEGER NOT NULL/' \
 		-e 's/([0-9, ]*) UNSIGNED / UNSIGNED /' \
+		-e 's/ MySQL / SQLite /' \
 		$< >$@
 
 clean: