rar arch installation fixed

lib/installer.sh

@@ -3,7 +3,7 @@
 function rarInstall(){
     if [ -e "$(command -v wget)" ]
     then
-        if [[ $(uname -m) -eq "x86_64" ]]
+        if [[ "$(uname -m)" == "x86_64" ]]
         then
             RAR_URL="https://www.rarlab.com/rar/rarlinux-x64-5.9.1.tar.gz"
             RAR_FILE="rarlinux-x64-5.9.1.tar.gz"