Update upgrade.sh

Author: Exlo84

rpm/upgrade.sh

@@ -56,7 +56,7 @@ echo '**************************'
 # Download node binary
 https://github.com/Ether1Project/Ether1/releases/download/V1.5.3/etho-linux-1.5.3.tar.gz
 tar -xvf etho-linux-1.5.3.tar.gz
-rm etho-linux-1.v.3.tar.gz
+rm etho-linux-1.5.3.tar.gz
 # Make node executable
 chmod +x geth
 sudo \mv geth /usr/sbin/