Address review feedback

- Delete blank line after "namespace {"
- Extend glob test to cover multiple pattern matches; add NOT

Author: mysterymath

lld/ELF/MarkLive.cpp

@@ -44,7 +44,6 @@ using namespace lld;
 using namespace lld::elf;
 
 namespace {
-
 using SecOffset = std::pair<InputSectionBase *, unsigned>;
 
 // Something that can have an independent reason for being live.

lld/test/ELF/why-live.test

@@ -153,8 +153,9 @@ test_local:
 
 ## Globs match multiple cases. Multiple --why-live flags union.
 
-# RUN: ld.lld a.o a.so --gc-sections --why-live=test_s* | FileCheck %s --check-prefix=MULTIPLE
-# RUN: ld.lld a.o a.so --gc-sections --why-live=test_simple --why-live=test_shared | FileCheck %s --check-prefix=MULTIPLE
+# RUN: ld.lld a.o a.so --gc-sections --why-live=test_se* --why-live=test_se* | FileCheck %s --check-prefix=MULTIPLE
+# RUN: ld.lld a.o a.so --gc-sections --why-live=test_section_offset --why-live=test_section_offset_within_symbol | FileCheck %s --check-prefix=MULTIPLE
 
-# MULTIPLE-DAG: live symbol: a.o:(test_simple)
-# MULTIPLE-DAG: live symbol: a.so:(test_shared)
+# MULTIPLE-DAG: live symbol: a.o:(test_section_offset)
+# MULTIPLE-DAG: live symbol: a.o:(test_section_offset_within_symbol)
+# MULTIPLE-NOT: live symbol