Adding upstream version 2.6.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

testdata/root/.editorconfig

@@ -0,0 +1,5 @@
+root = true
+
+[*.go]
+indent_style = space
+insert_final_newline = true

testdata/root/src/.editorconfig

@@ -0,0 +1,3 @@
+[*.go]
+indent_size = 4
+indent_style = tab

testdata/root/src/a.ini

@@ -0,0 +1,3 @@
+[*.go]
+indent_size = 5
+indent_style = space

testdata/root/src/dummy.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Dummy file")
+}