testing/ruby-rugged: skip flawed test that fails on some builders

testing/ruby-rugged/APKBUILD

@@ -14,6 +14,7 @@ source="$_gemname-$pkgver.tar.gz::https://github.com/libgit2/$_gemname/archive/v
 	fix-extconf-version-check.patch
 	libgit2-fixture-dir.patch
 	skip-test_discover_false.patch
+	skip-test_read_global_config_file.patch
 	fix-for-returning-enumerators.patch"
 builddir="$srcdir/$_gemname-$pkgver"
 
@@ -55,4 +56,5 @@ sha512sums="555fbfdc5b941212d7e47e4dcf2d39a6207c316ee4ce7e0f11c16929aae166a31d71
 c55c71d93f2d0430b83bdf8da6ef1754a519c190c0bbaf02ceb96f2b3f20616fe2ec6cb48eabfa2c87cbaf0cbdf4489a54e76080b8c5a8f4a7307019dd2aebe3  fix-extconf-version-check.patch
 0c749aeb8d6a29aed51737bab09c7b0a6669ac691461758c856ede5d8510ad6edfa284cddd1b54982bf614a45ba817b70e838e071889a9b05e1b0580111ec826  libgit2-fixture-dir.patch
 33464eeefc7669fe3bf5f47c4016cacdcba4f7455ed22b441383b49721870072b5095dbb68832cdb933a7659a415476db64b579a98c888b83900d092bb8b54be  skip-test_discover_false.patch
+b9e028f18830e447773e895046eb03489e94bb5a76fede51f93545ed67f7249ed8f37ed4bb832eb68a2db281ff3e2b84dab8b72bb21eea4b835b0f1ce23943c3  skip-test_read_global_config_file.patch
 5b5dd9dc7d9d142bf4e8fd0a4ff78ae006ecba416bd71bfc51f0d7565755047d64fd59bef03c9cd7f8be1347df8214e0a6ce57512981de31cc88baedb4ac3f7a  fix-for-returning-enumerators.patch"

testing/ruby-rugged/skip-test_read_global_config_file.patch

@@ -0,0 +1,13 @@
+It seems that this test fails when user.name is NOT set in ~/.gitconfig
+on the build system.
+
+--- a/test/config_test.rb
++++ b/test/config_test.rb
+@@ -17,6 +17,7 @@
+   end
+ 
+   def test_read_global_config_file
++    skip 'This test is flawed, it runs on real FS, i.e. it is not isolated'
+     config = Rugged::Config.global
+     refute_nil config['user.name']
+     assert_nil config['core.bare']