[llvm] [llvm-strings] Use small buffer instead of reading whole file (PR #163073)

[via llvm-commits]

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@@ -0,0 +1,13 @@
+## Show that a file that opens but cannot be read is reported on stderr, and
+## that processing continues with the remaining inputs. A directory can be
+## opened for reading on POSIX systems, but reading from it fails with
+## EISDIR. On Windows opening the directory fails instead, so the read error
+## path is not reachable this way.
+# UNSUPPORTED: system-windows
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aokblast wrote:

Previous FreeBSD releases would have problem. But we decide not to maintain compatibility on tests in EOL version of FreeBSD. See: https://github.com/llvm/llvm-project/pull/192612/changes

https://github.com/llvm/llvm-project/pull/163073