update osm2pgsql to latest version

lonvia · lonvia · commit 20f1939c4c61 · 2012-09-29T18:53:21.000+02:00
diff --git a/.gitmodules b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "osm2pgsql"]
 	path = osm2pgsql
 	url = https://github.com/openstreetmap/osm2pgsql.git
-    ignore = all
+    ignore = dirty
diff --git a/osm2pgsql b/osm2pgsql
@@ -1 +1 @@
-Subproject commit a5809fdaec5e52c00a97bcdfc48b8e13acffadd2
+Subproject commit 25adad1d8005c486a650943e7c7a36c74cc3ea7d
