Subzero: small cleanups

tests_lit/asan_tests/wideloads.ll

 ; Test that potentially widened loads to not trigger an error report
 
 ; REQUIRES: no_minimal_build
 
 ; check for wide load exception
 ; RUN: llvm-as %s -o - | pnacl-freeze > %t.pexe && %S/../../pydir/szbuild.py \
-; RUN:     --fsanitize-address --sz="-allow-externally-defined-symbols" \
+; RUN:     --fsanitize-address --sz=-allow-externally-defined-symbols \
 ; RUN:     %t.pexe -o %t && %t | FileCheck %s --check-prefix=WIDE --allow-empty
 
 ; check for error reporting
 ; RUN: llvm-as %s -o - | pnacl-freeze > %t.pexe && %S/../../pydir/szbuild.py \
-; RUN:     --fsanitize-address --sz="-allow-externally-defined-symbols" \
+; RUN:     --fsanitize-address --sz=-allow-externally-defined-symbols \
 ; RUN:     %t.pexe -o %t && %t 1 2>&1 | FileCheck %s --check-prefix=NOWIDE
 
 
 declare external void @exit(i32)
 
 define internal void @wide_load() {
   %str = alloca i8, i32 1, align 1
   %str4 = bitcast i8* %str to i32*
   %contents = load i32, i32* %str4, align 1
   call void @exit(i32 0)
@@ skipping 23 matching lines @@
 wide_load:
   call void @wide_load()
   br label %error
 no_wide_load:
   call void @no_wide_load()
   br label %error
 error:
   call void @exit(i32 1)
   unreachable
 }