Used proper "unsigned short" in place of "ushort" (not always defined).

src/uifc/uifc.c

@@ -1664,7 +1664,7 @@ void help()
 		,hbuf[HELPBUF_SIZE],str[256];
     char *p;
 	uint i,j,k,len;
-	ushort line;
+	unsigned short line;
 	long l;
 	FILE *fp;
 #ifndef __FLAT__

src/uifc/uifcd.c

@@ -352,7 +352,7 @@ void help()
 {
 	char hbuf[HELPBUF_SIZE],str[256];
     char *p;
-	ushort line;
+	unsigned short line;
 	long l;
 	FILE *fp;
 

src/uifc/uifcx.c

@@ -298,7 +298,7 @@ void help()
 {
 	char hbuf[HELPBUF_SIZE],str[256];
     char *p;
-	ushort line;
+	unsigned short line;
 	long l;
 	FILE *fp;