patch 9.0.1132: code is indented more than needed

Problem:    Code is indented more than needed.
Solution:   Use an early return to reduce indentation. (Yegappan Lakshmanan,
            closes #11769)
diff --git a/src/arglist.c b/src/arglist.c
index 6183faf..bb31c45 100644
--- a/src/arglist.c
+++ b/src/arglist.c
@@ -693,56 +693,56 @@
 	    emsg(_(e_cannot_go_before_first_file));
 	else
 	    emsg(_(e_cannot_go_beyond_last_file));
+
+	return;
+    }
+
+    setpcmark();
+#ifdef FEAT_GUI
+    need_mouse_correct = TRUE;
+#endif
+
+    // split window or create new tab page first
+    if (*eap->cmd == 's' || cmdmod.cmod_tab != 0)
+    {
+	if (win_split(0, 0) == FAIL)
+	    return;
+	RESET_BINDING(curwin);
     }
     else
     {
-	setpcmark();
-#ifdef FEAT_GUI
-	need_mouse_correct = TRUE;
-#endif
-
-	// split window or create new tab page first
-	if (*eap->cmd == 's' || cmdmod.cmod_tab != 0)
+	// if 'hidden' set, only check for changed file when re-editing
+	// the same buffer
+	other = TRUE;
+	if (buf_hide(curbuf))
 	{
-	    if (win_split(0, 0) == FAIL)
-		return;
-	    RESET_BINDING(curwin);
+	    p = fix_fname(alist_name(&ARGLIST[argn]));
+	    other = otherfile(p);
+	    vim_free(p);
 	}
-	else
-	{
-	    // if 'hidden' set, only check for changed file when re-editing
-	    // the same buffer
-	    other = TRUE;
-	    if (buf_hide(curbuf))
-	    {
-		p = fix_fname(alist_name(&ARGLIST[argn]));
-		other = otherfile(p);
-		vim_free(p);
-	    }
-	    if ((!buf_hide(curbuf) || !other)
-		  && check_changed(curbuf, CCGD_AW
-					 | (other ? 0 : CCGD_MULTWIN)
-					 | (eap->forceit ? CCGD_FORCEIT : 0)
-					 | CCGD_EXCMD))
-		return;
-	}
-
-	curwin->w_arg_idx = argn;
-	if (argn == ARGCOUNT - 1 && curwin->w_alist == &global_alist)
-	    arg_had_last = TRUE;
-
-	// Edit the file; always use the last known line number.
-	// When it fails (e.g. Abort for already edited file) restore the
-	// argument index.
-	if (do_ecmd(0, alist_name(&ARGLIST[curwin->w_arg_idx]), NULL,
-		      eap, ECMD_LAST,
-		      (buf_hide(curwin->w_buffer) ? ECMD_HIDE : 0)
-			 + (eap->forceit ? ECMD_FORCEIT : 0), curwin) == FAIL)
-	    curwin->w_arg_idx = old_arg_idx;
-	// like Vi: set the mark where the cursor is in the file.
-	else if (eap->cmdidx != CMD_argdo)
-	    setmark('\'');
+	if ((!buf_hide(curbuf) || !other)
+		&& check_changed(curbuf, CCGD_AW
+		    | (other ? 0 : CCGD_MULTWIN)
+		    | (eap->forceit ? CCGD_FORCEIT : 0)
+		    | CCGD_EXCMD))
+	    return;
     }
+
+    curwin->w_arg_idx = argn;
+    if (argn == ARGCOUNT - 1 && curwin->w_alist == &global_alist)
+	arg_had_last = TRUE;
+
+    // Edit the file; always use the last known line number.
+    // When it fails (e.g. Abort for already edited file) restore the
+    // argument index.
+    if (do_ecmd(0, alist_name(&ARGLIST[curwin->w_arg_idx]), NULL,
+		eap, ECMD_LAST,
+		(buf_hide(curwin->w_buffer) ? ECMD_HIDE : 0)
+		+ (eap->forceit ? ECMD_FORCEIT : 0), curwin) == FAIL)
+	curwin->w_arg_idx = old_arg_idx;
+    // like Vi: set the mark where the cursor is in the file.
+    else if (eap->cmdidx != CMD_argdo)
+	setmark('\'');
 }
 
 /*