Delete dead code, fix indentation, spelling, obvious warning

avoidance, doc fixes.  No functional changes.

src/lib/commands/setsect.c

@@ -360,7 +360,7 @@ resbenefit(natid who, int good)
     }
 }
 
-extern void
+void
 resnoise(struct sctstr *sptr, int public_amt, s_char *name, int old,
 	 int new)
 {

src/lib/commands/tele.c

@@ -62,7 +62,7 @@ tele(void)
 	    logerror("tele: typed_wu failed to #%d", to);
     } else if (*player->argp[0] == 'p') {
 	if (getele("your Gracious Deity", buf) <= 0) {
-	    pr("Prayor aborted\n");
+	    pr("Prayer aborted\n");
 	    return RET_OK;
 	}
 	pr("\n");

src/lib/commands/upgr.c

@@ -70,10 +70,10 @@ upgr(void)
     case 'L':
 	return lupgr();
     default:
-	pr("Ships, land units or planes only!\n");
-	return RET_SYN;
+	break;
     }
-    return RET_OK;
+    pr("Ships, land units or planes only!\n");
+    return RET_SYN;
 }
 
 static int