ash,hush: fix trap reporting: s/SIGEXIT/EXIT/

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell/hush.c

@@ -7099,7 +7099,7 @@ static int FAST_FUNC builtin_trap(char **argv)
 				printf("trap -- ");
 				print_escaped(G.traps[i]);
 				/* bash compat: it says SIGxxx, not just xxx */
-				printf(" SIG%s\n", get_signame(i));
+				printf(" %s%s\n", i == 0 ? "" : "SIG", get_signame(i));
 			}
 		}
 		/*fflush(stdout); - done after each builtin anyway */