more reformatting - label placement

Indent all labels one space.  Having uniform placement makes spotting
them much easier.  (Having no indent at all would impact the change
bars of 'git diff'.  Those display the last unindented line--which
doesn't start with punctuation--occuring before each band of changes,
so usually the name of the function being changed now that we no
longer have unindented K&R-style function argument declarations.)

While in there, shorten or split various wide lines and replace a few
tabs with spaces.

src/mkmap.c

@@ -57,8 +57,10 @@ get_map(int col, int row, schar bg_typ)
     return levl[col][row].typ;
 }
 
-static const int dirs[16] = { -1, -1 /**/, -1, 0 /**/,  -1, 1 /**/, 0, -1 /**/,
-                               0,  1 /**/,  1,  -1 /**/, 1,  0 /**/, 1, 1 };
+static const int dirs[16] = {
+    -1, -1 /**/, -1,  0 /**/, -1, 1 /**/, 0, -1 /**/,
+     0,  1 /**/,  1, -1 /**/,  1, 0 /**/, 1,  1
+};
 
 static void
 pass_one(schar bg_typ, schar fg_typ)
@@ -257,8 +259,8 @@ join_map(schar bg_typ, schar fg_typ)
                 g.n_loc_filled = 0;
                 flood_fill_rm(i, j, g.nroom + ROOMOFFSET, FALSE, FALSE);
                 if (g.n_loc_filled > 3) {
-                    add_room(g.min_rx, g.min_ry, g.max_rx, g.max_ry, FALSE, OROOM,
-                             TRUE);
+                    add_room(g.min_rx, g.min_ry, g.max_rx, g.max_ry,
+                             FALSE, OROOM, TRUE);
                     g.rooms[g.nroom - 1].irregular = TRUE;
                     if (g.nroom >= (MAXNROFROOMS * 2))
                         goto joinm;
@@ -278,14 +280,15 @@ join_map(schar bg_typ, schar fg_typ)
             }
         }
 
-joinm:
+ joinm:
     /*
      * Ok, now we can actually join the regions with fg_typ's.
      * The rooms are already sorted due to the previous loop,
      * so don't call sort_rooms(), which can screw up the roomno's
      * validity in the levl structure.
      */
-    for (croom = &g.rooms[0], croom2 = croom + 1; croom2 < &g.rooms[g.nroom];) {
+    for (croom = &g.rooms[0], croom2 = croom + 1;
+         croom2 < &g.rooms[g.nroom]; ) {
         /* pick random starting and end locations for "corridor" */
         if (!somexy(croom, &sm) || !somexy(croom2, &em)) {
             /* ack! -- the level is going to be busted */