t9200: Work around HFS+ issues.

We at least know that the test as written has a problem in an
environment where "touch '$p'; ls | fgrep '$p'" fails, and have
a clear understand why it fails.

This tests if the filesystem has that particular issue we know "git
add" has a problem with, and skips the test in such an environment.
This way, we might catch issues "git add" might have in other environments.

Signed-off-by: Junio C Hamano <junkio@cox.net>

t/t9200-git-cvsexportcommit.sh

@@ -169,6 +169,16 @@ test_expect_success \
       test "$(echo $(sort "G g/CVS/Entries"|cut -d/ -f2,3,5))" = "with spaces.png/1.2/-kb with spaces.txt/1.2/"
       )'
 
+# Some filesystems mangle pathnames with UTF-8 characters --
+# check and skip
+if p="Å/goo/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/å/ä/ö" &&
+	mkdir -p "tst/$p" &&
+	date >"tst/$p/day" &&
+	found=$(find tst -type f -print) &&
+	test "z$found" = "ztst/$p/day" &&
+	rm -fr tst
+then
+
 # This test contains UTF-8 characters
 test_expect_success \
      'File with non-ascii file name' \
@@ -184,6 +194,10 @@ test_expect_success \
       test "$(echo $(sort Å/goo/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/å/ä/ö/CVS/Entries|cut -d/ -f2,3,5))" = "gårdetsågårdet.png/1.1/-kb gårdetsågårdet.txt/1.1/"
       )'
 
+fi
+
+rm -fr tst
+
 test_expect_success \
      'Mismatching patch should fail' \
      'date >>"E/newfile5.txt" &&