patch 9.1.0581: Various lines are indented inconsistently

Problem:  style: Various lines are indented inconsistently
Solution: Retab these lines and correct some comments.
          (zeertzjq)

closes: #15259

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/vim9class.c b/src/vim9class.c
index 9337082..70f2405 100644
--- a/src/vim9class.c
+++ b/src/vim9class.c
@@ -3101,7 +3101,7 @@
 	{
 	    ret_m = m;
 	    ret_idx = i;
-            break;
+	    break;
 	}
     }
     if (idx != NULL)
@@ -3184,11 +3184,11 @@
 	    }
 	}
 	else if (STRCMP(name, m->ocm_name) == 0)
-        {
+	{
 	    ret_m = m;
 	    ret_idx = i;
-            break;
-        }
+	    break;
+	}
     }
     if (idx != NULL)
 	*idx = ret_idx;
@@ -3684,7 +3684,7 @@
     }
     else
 	semsg(_(e_method_not_found_on_class_str_str), method_name,
-	        cl->class_name);
+		cl->class_name);
     vim_free(method_name);
 }