[llvm-readobj/llvm-readelf] - Add checks for GNU-style to "all.test" test case.
[llvm-readobj/llvm-readelf] - Add checks for GNU-style to "all.test" test case.

We do not check the GNU-style output when -all is given.
This patch does that.

Differential revision: https://reviews.llvm.org/D68462

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@374028 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm