Add LinuxMint to distro check

Adds LinuxMint to the distro checking. This allows linux mint with
the FORCE option to run. This will not fix for other distros that
do not pass the checks.

Change-Id: I42599c1bd851d2b61a56a3960f42ad051aab1727
Closes-Bug: #1545864

Author: the2hill

functions-common

@@ -365,8 +365,9 @@ declare DISTRO
 
 function GetDistro {
     GetOSVersion
-    if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then
-        # 'Everyone' refers to Ubuntu / Debian releases by
+    if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) || \
+            "$os_VENDOR" =~ (LinuxMint) ]]; then
+        # 'Everyone' refers to Ubuntu / Debian / Mint releases by
         # the code name adjective
         DISTRO=$os_CODENAME
     elif [[ "$os_VENDOR" =~ (Fedora) ]]; then