[test] Avoid llvm-readelf/llvm-readobj one-dash long options

Author: MaskRay

compiler-rt/test/asan/TestCases/Windows/delay_dbghelp.cpp

@@ -9,7 +9,7 @@
 // static build, there won't be any clang_rt DLLs.
 // RUN: not grep cl""ang_rt %t || \
 // RUN:   grep cl""ang_rt %t | xargs which | \
-// RUN:   xargs llvm-readobj -coff-imports | not grep dbghelp.dll %t
+// RUN:   xargs llvm-readobj --coff-imports | not grep dbghelp.dll %t
 
 extern "C" int puts(const char *);
 

lld/test/ELF/ppc64-toc-addis-nop-lqsq.s

@@ -1,7 +1,7 @@
 # REQUIRES: ppc
 # XFAIL: *
 
-# RUN: llvm-readelf -relocations --wide  %p/Inputs/ppc64le-quadword-ldst.o | FileCheck --check-prefix=QuadInputRelocs %s
+# RUN: llvm-readelf -r --wide  %p/Inputs/ppc64le-quadword-ldst.o | FileCheck --check-prefix=QuadInputRelocs %s
 
 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/shared-ppc64.s -o %t2.o
 # RUN: ld.lld -shared %t2.o -o %t2.so