Ooops, forgot to update ecpg comparison files to match

source-code change.

src/interfaces/ecpg/test/expected/compat_informix-rfmtdate.c

@@ -162,7 +162,7 @@ main(void)
 }
 
 static void
-check_return(ret)
+check_return(int ret)
 {
 	switch(ret)
 	{

src/interfaces/ecpg/test/expected/compat_informix-rfmtlong.c

@@ -60,7 +60,7 @@ main(void)
 }
 
 static void
-check_return(ret)
+check_return(int ret)
 {
 	switch(ret)
 	{