Change * to match ANY file, to confirm with unofficial public usage.

editorconfig/path_matcher.go

@@ -30,6 +30,13 @@ var metaCharsRegexp = []*regexp.Regexp{
 }
 
 func ConvertWildcardPatternToGoRegexp(pattern string) *regexp.Regexp {
+	if pattern == "*" {
+		// A single * seems to be universally used to mean every file, despite the official docs
+		// showing that ** is correct and * should only match top-level files. However, we adapt
+		// to what is used in the real world to be practical.
+		return regexp.MustCompile(".")
+	}
+
 	originalPattern := pattern
 
 	for _, r := range metaCharsRegexp {

editorconfig/path_matcher_test.go

@@ -43,4 +43,7 @@ func TestConvertWildcardPatternToGoRegexp(t *testing.T) {
 
 	// Test everything together.
 	RunConvertWildcardPatternToGoRegexp(`*/**/[a-z]/{photos,videos}/{0..5}.*`, `[^/\\]+/.+/[a-z]/(photos|videos)/[-0-9]+\.[^/\\]+`)
+
+	// Test * on it's own. It should match every path.
+	RunConvertWildcardPatternToGoRegexp(`*`, `.`)
 }