typo fix

fix small typos

Author: mach0

bin/v-add-sys-rainloop

@@ -40,7 +40,7 @@ RL_LOG="/var/log/rainloop"
 
 # Checking root permissions
 if [ "x$(id -u)" != 'x0' ]; then
-    echo "ERROR: v-add-sys-rainloop can be run executed only by root user"
+    echo "ERROR: v-add-sys-rainloop can only be executed by the root user"
     exit 10
 fi
 
@@ -58,7 +58,7 @@ fi
 if [ -f "/var/lib/rainloop/data/VERSION" ]; then
     version=$(cat $RL_INSTALL_DIR/data/VERSION);
     if [ "$version" == "$rl_v" ]; then
-        echo "Error: Installed version ($version) is equal as the availble version ($rl_v)"
+        echo "Error: Installed version ($version) is equal to the available version ($rl_v)"
         exit 2;
     else 
         UPDATE="yes"