Refresh po/POTFILES.in.

In particular, remove lib/pidfile.c which was causing failures. Also sort
for diffability with "find . -type f -name '*.c' | cut -c3- | sort" output.

po/POTFILES.in

@@ -3,33 +3,61 @@
 
 # Package source files
 
-lib/pidfile.c
+lib/dropin.c
 lib/utils.c
-src/conf.c
-src/connection.c
-src/meta.c
-src/net.c
-src/net_packet.c
-src/net_setup.c
-src/net_socket.c
-src/netutl.c
-src/protocol.c
-src/protocol_auth.c
-src/protocol_edge.c
-src/protocol_key.c
-src/protocol_misc.c
-src/protocol_subnet.c
+lib/memcmp.c
+lib/getopt.c
+lib/avl_tree.c
+lib/list.c
+lib/getopt1.c
+lib/xmalloc.c
+lib/fake-getaddrinfo.c
+lib/alloca.c
+lib/splay_tree.c
+lib/fake-getnameinfo.c
+lib/malloc.c
+lib/realloc.c
+src/tincctl.c
 src/subnet.c
-src/tincd.c
-src/process.c
-src/route.c
-src/node.c
+src/logger.c
 src/edge.c
-src/graph.c
-src/linux/device.c
-src/solaris/device.c
+src/device.c
+src/protocol_key.c
+src/protocol_edge.c
+src/control.c
+src/connection.c
+src/openssl/rsa.c
+src/openssl/digest.c
+src/openssl/cipher.c
+src/openssl/crypto.c
+src/protocol_auth.c
+src/net_packet.c
+src/rsa.c
 src/bsd/device.c
-src/cygwin/device.c
-src/mingw/device.c
+src/graph.c
 src/raw_socket/device.c
+src/net_setup.c
+src/digest.c
+src/conf.c
+src/gcrypt/rsa.c
+src/gcrypt/digest.c
+src/gcrypt/cipher.c
+src/gcrypt/crypto.c
 src/uml_socket/device.c
+src/mingw/device.c
+src/net_socket.c
+src/meta.c
+src/netutl.c
+src/cygwin/device.c
+src/node.c
+src/protocol.c
+src/process.c
+src/protocol_subnet.c
+src/cipher.c
+src/net.c
+src/linux/device.c
+src/tincd.c
+src/crypto.c
+src/solaris/device.c
+src/route.c
+src/protocol_misc.c