* expand tabs.

eval.c

@@ -790,7 +790,7 @@ make_exception(int argc, const VALUE *argv, int isstr)
 	}
 	break;
       default:
-	rb_error_arity(argc, 0, 3);
+        rb_error_arity(argc, 0, 3);
     }
     if (argc > 0) {
 	if (!rb_obj_is_kind_of(mesg, rb_eException))

file.c

@@ -3228,7 +3228,7 @@ rb_file_s_umask(int argc, VALUE *argv)
 	omask = umask(NUM2MODET(argv[0]));
         break;
       default:
-	rb_error_arity(argc, 0, 1);
+        rb_error_arity(argc, 0, 1);
     }
     return MODET2NUM(omask);
 }

numeric.c

@@ -3418,7 +3418,7 @@ int_chr(int argc, VALUE *argv, VALUE num)
       case 1:
 	break;
       default:
-	rb_error_arity(argc, 0, 1);
+        rb_error_arity(argc, 0, 1);
     }
     enc = rb_to_encoding(argv[0]);
     if (!enc) enc = rb_ascii8bit_encoding();

string.c

@@ -5186,7 +5186,7 @@ str_gsub(int argc, VALUE *argv, VALUE str, int bang)
 	tainted = OBJ_TAINTED_RAW(repl);
 	break;
       default:
-	rb_error_arity(argc, 1, 2);
+        rb_error_arity(argc, 1, 2);
     }
 
     pat = get_pat_quoted(argv[0], 1);