Update Mono to latest 4.2.3.4

library/mono

@@ -38,12 +38,18 @@
 
 4.2.2.30: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30
 4.2.2: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30
-4.2: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30
-4: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30
-latest: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30
 
 4.2.2.30-onbuild: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30/onbuild
 4.2.2-onbuild: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30/onbuild
-4.2-onbuild: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30/onbuild
-4-onbuild: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30/onbuild
-onbuild: git://github.com/mono/docker@d1aafcdae56ae9ceaf013294d3c74c4183a80281 4.2.2.30/onbuild
+
+4.2.3.4: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4
+4.2.3.4: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4
+4.2: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4
+4: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4
+latest: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4
+
+4.2.3.4-onbuild: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4/onbuild
+4.2.3.4-onbuild: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4/onbuild
+4.2-onbuild: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4/onbuild
+4-onbuild: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4/onbuild
+onbuild: git://github.com/mono/docker@38858eb4bcdfc45e448ce8aae8b38148578f0f94 4.2.3.4/onbuild