spelling and typo fixes

Submitted for 3.7.0; all but one also apply to 3.6.3.

I rewrote the curses terminal-too-small message instead of just
fixing the spelling of "minumum".

doc/fixes36.4

@@ -10,6 +10,7 @@ GDBPATH and GREPPATH from sysconf or -D... on compilation command line were
 	being processed even if PANICTRACE was disabled but only being freed
 	at end of game when that was enabled
 fix the article used in the message when your steed encounters a polymorph trap
+dozen-ish assorted spelling/typo fixes in messages and source comments
 
 
 Fixes to Post-3.6.3 Problems that Were Exposed Via git Repository

src/bones.c

@@ -598,7 +598,7 @@ getbones()
 
     if (validate(fd, bones) != 0) {
         if (!wizard)
-            pline("Discarding unuseable bones; no need to panic...");
+            pline("Discarding unusable bones; no need to panic...");
         ok = FALSE;
     } else {
         ok = TRUE;

src/hack.c

@@ -2840,7 +2840,7 @@ int x, y;
     if (!IS_DOOR(lev_p->typ))
         return FALSE;
     /* all rogue level doors are doorless but disallow diagonal access, so
-       we treat them as if their non-existant doors were actually present */
+       we treat them as if their non-existent doors were actually present */
     if (Is_rogue_level(&u.uz))
         return FALSE;
     return !(lev_p->doormask & ~(D_NODOOR | D_BROKEN));

src/options.c

@@ -395,7 +395,7 @@ static struct Comp_Opt {
     },
     { "statuslines",
 #ifdef CURSES_GRAPHICS
-      "2 or 3 lines for horizonal (bottom or top) status display",
+      "2 or 3 lines for horizontal (bottom or top) status display",
       20, SET_IN_GAME
 #else
       "2 or 3 lines for status display",

src/potion.c

@@ -2260,7 +2260,7 @@ dodip()
                           more_than_one ? " that you dipped into" : "",
                           newbuf);
             else
-                pline("Somehing happens.");
+                pline("Something happens.");
 
             if (old_dknown
                 && !objects[old_otyp].oc_name_known

src/shk.c

@@ -4396,7 +4396,7 @@ const char *Izchak_speaks[] = {
     "%s says: 'These shopping malls give me a headache.'",
     "%s says: 'Slow down.  Think clearly.'",
     "%s says: 'You need to take things one at a time.'",
-    "%s says: 'I don't like poofy coffee... give me Columbian Supremo.'",
+    "%s says: 'I don't like poofy coffee... give me Colombian Supremo.'",
     "%s says that getting the devteam's agreement on anything is difficult.",
     "%s says that he has noticed those who serve their deity will prosper.",
     "%s says: 'Don't try to steal from me - I have friends in high places!'",

src/timeout.c

@@ -93,7 +93,7 @@ const struct propname {
     { UNCHANGING, "unchanging" },
     { REFLECTING, "reflecting" },
     { FREE_ACTION, "free action" },
-    { FIXED_ABIL, "fixed abilites" },
+    { FIXED_ABIL, "fixed abilities" },
     { LIFESAVED, "life will be saved" },
     {  0, 0 },
 };
@@ -1398,7 +1398,7 @@ long timeout;
         break; /* case [otyp ==] candelabrum|tallow_candle|wax_candle */
 
     default:
-        impossible("burn_object: unexpeced obj %s", xname(obj));
+        impossible("burn_object: unexpected obj %s", xname(obj));
         break;
     }
     if (need_newsym)

src/trap.c

@@ -1591,7 +1591,7 @@ struct obj *otmp;
     switch (tt) {
     case ARROW_TRAP:
         if (!otmp) {
-            impossible("steed hit by non-existant arrow?");
+            impossible("steed hit by non-existent arrow?");
             return 0;
         }
         trapkilled = thitm(8, steed, otmp, 0, FALSE);
@@ -1599,7 +1599,7 @@ struct obj *otmp;
         break;
     case DART_TRAP:
         if (!otmp) {
-            impossible("steed hit by non-existant dart?");
+            impossible("steed hit by non-existent dart?");
             return 0;
         }
         trapkilled = thitm(7, steed, otmp, 0, FALSE);

win/curses/cursmain.c

@@ -211,8 +211,11 @@ curses_init_nhwindows(int *argcp UNUSED,
     getmaxyx(base_term, term_rows, term_cols);
     counting = FALSE;
     curses_init_options();
-    if ((term_rows < 15) || (term_cols < 40)) {
+    if (term_rows < 15 || term_cols < 40) {
-        panic("Terminal too small.  Must be minumum 40 width and 15 height");
+        panic("Terminal is too small; must have at least %s%s%s.",
+              (term_rows < 15) ? "15 rows" : "",
+              (term_rows < 15 && term_cols < 40) ? " and " : "",
+              (term_cols < 40) ? "40 columns" : "");
     }
     /* during line input, deletes the most recently typed character */
     erase_char = erasechar(); /* <delete>/<rubout> or possibly <backspace> */

win/curses/curswins.c

@@ -504,7 +504,7 @@ curses_puts(winid wid, int attr, const char *text)
     if (curses_is_menu(wid) || curses_is_text(wid)) {
         if (!curses_menu_exists(wid)) {
             impossible(
-                     "curses_puts: Attempted write to nonexistant window %d!",
+                     "curses_puts: Attempted write to nonexistent window %d!",
                        wid);
             return;
         }

win/tty/topl.c

@@ -302,7 +302,7 @@ char c;
     register struct WinDesc *cw = wins[WIN_MESSAGE];
 
     if (cw == (struct WinDesc *) 0)
-        panic("Putsym window MESSAGE nonexistant");
+        panic("Putsym window MESSAGE nonexistent");
 
     switch (c) {
     case '\b':

win/tty/wintty.c

@@ -1057,7 +1057,7 @@ reset_role_filtering()
 
     add_menu(win, NO_GLYPH, &any, 0, 0, ATR_NONE, "", MENU_UNSELECTED);
     add_menu(win, NO_GLYPH, &any, 0, 0, ATR_NONE,
-             "Uncceptable alignments", MENU_UNSELECTED);
+             "Unacceptable alignments", MENU_UNSELECTED);
     setup_algnmenu(win, FALSE, ROLE_NONE, ROLE_NONE, ROLE_NONE);
 
     end_menu(win, "Pick all that apply");