Fix trailing whitespace breaking find -exec in script

Remove trailing spaces after backslash on line continuation,
which caused 'find: missing argument to -exec'.

files/add-almalinux10-support.sh

@@ -86,7 +86,7 @@ if [ -d products/almalinux10/controls ]; then
         -e 's/RHEL-10/ALMALINUX-10/g' \
         -e 's/RHEL/AlmaLinux/g' \
         -e 's/Red Hat/AlmaLinux/g' \
-        -e '/^id:/s/rhel10/almalinux10/g' \      
+        -e '/^id:/s/rhel10/almalinux10/g' \
         -e '/^product:/s/rhel10/almalinux10/g' \
         -e 's/ensure_redhat_gpgkey_installed/ensure_almalinux_gpgkey_installed/g' {} \;
 fi