Fix comment of exc_inspect (and adjust spaces)

src/error.c

@@ -115,7 +115,10 @@ exc_message(mrb_state *mrb, mrb_value exc)
  * call-seq:
  *   exception.inspect   -> string
  *
- * Return this exception's class name an message
+ * Returns this exception's file name, line number,
+ * message and class name.
+ * If file name or line number is not set,
+ * returns message and class name.
  */
 
 static mrb_value
@@ -444,18 +447,18 @@ mrb_init_exception(mrb_state *mrb)
 {
   struct RClass *e;
 
-  mrb->eException_class = e = mrb_define_class(mrb, "Exception",           mrb->object_class);         /* 15.2.22 */
-  mrb_define_class_method(mrb, e, "exception", mrb_instance_new, MRB_ARGS_ANY());
-  mrb_define_method(mrb, e, "exception", exc_exception, MRB_ARGS_ANY());
-  mrb_define_method(mrb, e, "initialize", exc_initialize, MRB_ARGS_ANY());
-  mrb_define_method(mrb, e, "==", exc_equal, MRB_ARGS_REQ(1));
-  mrb_define_method(mrb, e, "to_s", exc_to_s, MRB_ARGS_NONE());
-  mrb_define_method(mrb, e, "message", exc_message, MRB_ARGS_NONE());
-  mrb_define_method(mrb, e, "inspect", exc_inspect, MRB_ARGS_NONE());
-  mrb_define_method(mrb, e, "backtrace", mrb_exc_backtrace, MRB_ARGS_NONE());
-
-  mrb->eStandardError_class     = mrb_define_class(mrb, "StandardError",       mrb->eException_class); /* 15.2.23 */
+  mrb->eException_class = e = mrb_define_class(mrb, "Exception", mrb->object_class);                   /* 15.2.22 */
+  mrb_define_class_method(mrb, e, "exception", mrb_instance_new,  MRB_ARGS_ANY());
+  mrb_define_method(mrb, e, "exception",       exc_exception,     MRB_ARGS_ANY());
+  mrb_define_method(mrb, e, "initialize",      exc_initialize,    MRB_ARGS_ANY());
+  mrb_define_method(mrb, e, "==",              exc_equal,         MRB_ARGS_REQ(1));
+  mrb_define_method(mrb, e, "to_s",            exc_to_s,          MRB_ARGS_NONE());
+  mrb_define_method(mrb, e, "message",         exc_message,       MRB_ARGS_NONE());
+  mrb_define_method(mrb, e, "inspect",         exc_inspect,       MRB_ARGS_NONE());
+  mrb_define_method(mrb, e, "backtrace",       mrb_exc_backtrace, MRB_ARGS_NONE());
+
+  mrb->eStandardError_class = mrb_define_class(mrb, "StandardError", mrb->eException_class);           /* 15.2.23 */
   mrb_define_class(mrb, "RuntimeError", mrb->eStandardError_class);                                    /* 15.2.28 */
-  e = mrb_define_class(mrb, "ScriptError",  mrb->eException_class);                                    /* 15.2.37 */
-  mrb_define_class(mrb, "SyntaxError",  e);                                                            /* 15.2.38 */
+  e = mrb_define_class(mrb, "ScriptError", mrb->eException_class);                                     /* 15.2.37 */
+  mrb_define_class(mrb, "SyntaxError", e);                                                             /* 15.2.38 */
 }