Get the Docker Engine to build clean on Solaris

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

fileutils/fileutils_solaris.go

@@ -0,0 +1,7 @@
+package fileutils
+
+// GetTotalUsedFds Returns the number of used File Descriptors.
+// On Solaris these limits are per process and not systemwide
+func GetTotalUsedFds() int {
+	return -1
+}