Consistently use int for file type parameters and locals

src/lib/commands/look.c

@@ -55,7 +55,7 @@ llook(void)
 }
 
 int
-do_look(short type)
+do_look(int type)
 {
     int i;
     struct nstr_item ni;

src/lib/commands/navi.c

@@ -82,7 +82,7 @@ do_unit_move(struct emp_qelem *ulist, int *together,
     char *pt = pathtaken;
     char bmap_flag;
     int ac;
-    short type;
+    int type;
 
     leader = get_leader(ulist);
     leader_uid = leader->uid;

src/lib/commands/rada.c

@@ -50,7 +50,7 @@ lrad(void)
 }
 
 int
-radar(short type)
+radar(int type)
 {
     char *cp;
     double tf;

src/lib/commands/retr.c

@@ -51,7 +51,7 @@
 static char shp_rflagsc[] = "Xitshbdu";
 static char lnd_rflagsc[] = "XiXXhbXX";
 
-static int retreat(short);
+static int retreat(int);
 
 int
 retr(void)
@@ -66,7 +66,7 @@ lretr(void)
 }
 
 static int
-retreat(short type)
+retreat(int type)
 {
     char *pq, *fl;
     int nunits;