Fix pass on darwin

pkgs/tools/security/pass/default.nix

···
     sha256 = "05bk3lrp5jwg0v338lvylp7glpliydzz4jf5pjr6k3kagrv3jyik";
   };
 
+  patches = if stdenv.isDarwin then [ ./no-darwin-getopt.patch ] else null;
+
   buildInputs = [ makeWrapper ];
 
   meta = with stdenv.lib; {

pkgs/tools/security/pass/no-darwin-getopt.patch

···
+diff -Naur password-store-1.6.5-orig/src/platform/darwin.sh password-store-1.6.5/src/platform/darwin.sh
+--- password-store-1.6.5-orig/src/platform/darwin.sh	2015-01-28 16:43:02.000000000 +0000
++++ password-store-1.6.5/src/platform/darwin.sh	2015-02-15 16:09:02.000000000 +0000
+@@ -31,5 +31,4 @@
+ 	mount -t hfs -o noatime -o nobrowse "$DARWIN_RAMDISK_DEV" "$SECURE_TMPDIR" || die "Error: could not mount filesystem on ramdisk."
+ }
+ 
+-GETOPT="$(brew --prefix gnu-getopt 2>/dev/null || { which port &>/dev/null && echo /opt/local; } || echo /usr/local)/bin/getopt"
+ SHRED="srm -f -z"