Use upstream PostgreSQL editorconfig

Author: kovmir

.editorconfig

@@ -1,13 +1,14 @@
 root = true
 
-[*]
-end_of_line = lf
-insert_final_newline = true
-charset = utf-8
-
-[*.{c,h}]
+[*.{c,h,l,y,pl,pm}]
 indent_style = tab
-indent_size = 4
+indent_size = tab
+tab_width = 4
 
-[Makefile]
-indent_style = tab
+[*.{sgml,xml}]
+indent_style = space
+indent_size = 1
+
+[*.xsl]
+indent_style = space
+indent_size = 2