[loongarch] fix syntax error in script

At least on macOS with zsh, the test failed with

    line 1: syntax error near unexpected token `&'

previously.

diff --git a/llvm/test/MC/LoongArch/Relocations/reloc-directive-err.s b/llvm/test/MC/LoongArch/Relocations/reloc-directive-err.s
index 07860df..60fd145 100644 (file)
--- a/llvm/test/MC/LoongArch/Relocations/reloc-directive-err.s
+++ b/llvm/test/MC/LoongArch/Relocations/reloc-directive-err.s
@@ -1,4 +1,4 @@
-# RUN: llvm-mc --triple=loongarch64 %s |& FileCheck --check-prefix=PRINT %s
+# RUN: llvm-mc --triple=loongarch64 %s | FileCheck --check-prefix=PRINT %s
 # RUN: not llvm-mc --filetype=obj --triple=loongarch64 %s -o /dev/null 2>&1 \
 # RUN:                 | FileCheck %s