llvm dev - Jul 2012 - [LLVMdev] Fix for "Bad fd number" error in test_debuginfo.pl

Hi,

Attached is a simple patch to fix a "Bad fd number" error in
test_debuginfo.pl which has come about because of an invalid redirection in the
system call.

Normally the stdout+stderr to file redirection is "&>" (not
">&" as in the script!), but I have found this to be
unsupported on all shell types (I think it was introduced in bash at version 4,
for example), so the more portable "> file 2>&1" has been
substituted.

Cheers
Andy
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