Sudo isnt available on every distro. (#4194)

Author: tiagom62

install.sh

@@ -10,4 +10,4 @@ fi
 
 wget https://raw.githubusercontent.com/snipe/snipe-it/master/snipeit.sh
 chmod 744 snipeit.sh
-sudo ./snipeit.sh 2>&1 | sudo tee -a /var/log/snipeit-install.log
+./snipeit.sh 2>&1 | tee -a /var/log/snipeit-install.log