fix: failing XDG test on Windows CI

Problem:
Failing Windows CI:
    FAILED   test/functional\options\defaults_spec.lua @ 361: XDG defaults with too long XDG variables are correctly set
    test\helpers.lua:134: Pattern "Failed to start server: no such file or directory: /X/X/X" not found in log (last 10 lines): Xtest-defaults-log:
    FAILED   test/functional\options\defaults_spec.lua @ 435: XDG defaults with XDG variables that can be expanded are not expanded
    test\helpers.lua:134: Pattern "Failed to start server: no such file or directory: %$XDG_RUNTIME_DIR%/" not found in log (last 10 lines): Xtest-defaults-log:

Solution:
The assert_log() statements are not relevant on Windows, because there
XDG_RUNTIME_DIR is not used for creating servers, it uses \\.pipe\….

1 files changed, 6 insertions, 2 deletions

diff --git a/test/functional/options/defaults_spec.lua b/test/functional/options/defaults_spec.lua
index 6a28885bf0..84ec43f4cb 100644
--- a/test/functional/options/defaults_spec.lua
+++ b/test/functional/options/defaults_spec.lua
@@ -359,7 +359,9 @@ describe('XDG defaults', function()
     end)
 
     it('are correctly set', function()
-      assert_log('Failed to start server: no such file or directory: /X/X/X', testlog, 10)
+      if not is_os('win') then
+        assert_log('Failed to start server: no such file or directory: /X/X/X', testlog, 10)
+      end
 
       local vimruntime, libdir = vimruntime_and_libdir()
 
@@ -433,7 +435,9 @@ describe('XDG defaults', function()
     end)
 
     it('are not expanded', function()
-      assert_log('Failed to start server: no such file or directory: %$XDG_RUNTIME_DIR%/', testlog, 10)
+      if not is_os('win') then
+        assert_log('Failed to start server: no such file or directory: %$XDG_RUNTIME_DIR%/', testlog, 10)
+      end
 
       local vimruntime, libdir = vimruntime_and_libdir()
       eq((('$XDG_DATA_HOME/nvim'