patch 9.0.1795: Indentation issues

Problem:  Indentation issues
Solution: Fix code indentation issues.

closes: #12906

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 88eba32..ad3a310 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4167,7 +4167,7 @@
 
     char_u *cmd_compl = cmdcomplete_type_to_str(p->xpc->xp_context);
     if (cmd_compl == NULL)
-        return NULL;
+	return NULL;
 
     if (p->xpc->xp_context == EXPAND_USER_LIST || p->xpc->xp_context == EXPAND_USER_DEFINED)
     {