[llvm-ar][test] Clarified comment

The test is dependant on the installation of the en_US.UTF-8
locale. The reasoning for this is clarified in the amended comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@373737 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/tools/llvm-ar/mri-utf8.test b/test/tools/llvm-ar/mri-utf8.test
index 6499996007473d62348975e8c4d9afc09b177c14..e297dce8d8aefe1fb5d2155164eb5836efb094d0 100644 (file)
--- a/test/tools/llvm-ar/mri-utf8.test
+++ b/test/tools/llvm-ar/mri-utf8.test
@@ -16,4 +16,8 @@ RUN: cd %t/extracted && llvm-ar x %t/mri.ar
 # include arguments with non-ascii characters.
 # Python on Linux defaults to ASCII encoding unless the
 # environment specifies otherwise, so it is explicitly set.
+# The reliance the test has on this locale is not ideal,
+# however alternate solutions have been difficult due to 
+# behaviour differences with python 2 vs python 3,
+# and linux vs windows.
 RUN: env LANG=en_US.UTF-8 %python -c "assert open(u'\U000000A3.txt', 'rb').read() == b'contents\n'"