[lld] [lld-macho] Fix category merging sed issue - Try nr.2 (PR #112981)

[via llvm-commits]

https://github.com/alx32 created https://github.com/llvm/llvm-project/pull/112981

We replace sed with awk as I couldn't find a syntax that works consistently on Linux/Mac for sed. 

>From 143e5a3f56663ec05162e5307373e428ccb4b760 Mon Sep 17 00:00:00 2001
From: Alex Borcan <alexborcan at fb.com>
Date: Fri, 18 Oct 2024 13:53:27 -0700
Subject: [PATCH] [lld-macho] Fix category merging sed issue - Try nr.2

---
 lld/test/MachO/objc-category-merging-minimal.s | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lld/test/MachO/objc-category-merging-minimal.s b/lld/test/MachO/objc-category-merging-minimal.s
index 437294791bf33b..88c175333f2629 100644
--- a/lld/test/MachO/objc-category-merging-minimal.s
+++ b/lld/test/MachO/objc-category-merging-minimal.s
@@ -30,7 +30,7 @@
 
 ############ Test merging skipped due to invalid category name ############
 # Modify __OBJC_$_CATEGORY_MyBaseClass_$_Category01's name to point to L_OBJC_IMAGE_INFO+3
-# RUN: sed -E '/^__OBJC_\$_CATEGORY_MyBaseClass_\$_Category01:/ { n; s/^[ \t]*\.quad[ \t]+l_OBJC_CLASS_NAME_$/\t.quad\tL_OBJC_IMAGE_INFO+3/}' merge_cat_minimal.s > merge_cat_minimal_bad_name.s
+# RUN: awk '/^__OBJC_\$_CATEGORY_MyBaseClass_\$_Category01:/ { print; getline; sub(/^[ \t]*\.quad[ \t]+l_OBJC_CLASS_NAME_$/, "\t.quad\tL_OBJC_IMAGE_INFO+3"); print; next } { print }' merge_cat_minimal.s > merge_cat_minimal_bad_name.s
 
 # Assemble the modified source
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_cat_minimal_bad_name.o merge_cat_minimal_bad_name.s