Fix some unanchored patch URLs

Formula/google-perftools.rb

@@ -14,7 +14,7 @@ class GooglePerftools < Formula
   # * configure patch removes __thread support, which breaks tcmalloc since it internally calls malloc as well
   #   upstream: https://code.google.com/p/gperftools/issues/detail?id=573
   def patches
-    [DATA, "https://gist.github.com/JustSid/7430366/raw"]
+    [DATA, "https://gist.github.com/JustSid/7430366/raw/54979ac61602eec5e59223164cb1f0d136044d1f/gistfile1.txt"]
   end
 
   def install

Formula/libkml.rb

@@ -26,9 +26,9 @@ class Libkml < Formula
     # Fix just forces internal libs to be linked statically until the following
     # is addressed upstream: https://code.google.com/p/libkml/issues/detail?id=50
     if build.head?
-      p << "https://gist.github.com/dakcarto/7420023/raw"
+      p << "https://gist.github.com/dakcarto/7420023/raw/65cdb088c91a7da844251e348eeda8df1d903f1d/libkml-svn-static-deps"
     else
-      p << "https://gist.github.com/dakcarto/7419882/raw"
+      p << "https://gist.github.com/dakcarto/7419882/raw/10ae08af224b3fee0617fa6288d806d3ccf37c0f/libkml-1.2-static-deps"
     end
     return p
   end

Formula/liblwgeom.rb

@@ -26,7 +26,7 @@ class Liblwgeom < Formula
       # Strip all the PostgreSQL functions from PostGIS configure.ac, to allow
       # building liblwgeom.dylib without needing PostgreSQL
       # NOTE: this will need to be maintained per postgis version
-      "https://gist.github.com/dakcarto/7458788/raw"
+      "https://gist.github.com/dakcarto/7458788/raw/8df39204eef5a1e5671828ded7f377ad0f61d4e1/postgis-config_strip-pgsql.diff"
     end
   end
 

Formula/open-babel.rb

@@ -17,7 +17,7 @@ class OpenBabel < Formula
 
   # Patch to fix Molecule.draw() in pybel in accordance with upstream commit df59c4a630cf753723d1318c40479d48b7507e1c
   def patches
-    "https://gist.github.com/fredrikw/5858168/raw"
+    "https://gist.github.com/fredrikw/5858168/raw/e4b5899e781d5707f5c386e436b5fc7810f2010d/ob-2-3-2-patch.diff"
   end
 
   def install