accidentally missed \\n

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

automated install/basic-install.sh

@@ -217,7 +217,7 @@ os_check() {
             printf "  %b %bUnsupported OS detected%b\\n" "${CROSS}" "${COL_LIGHT_RED}" "${COL_NC}"
             printf "      https://docs.pi-hole.net/main/prerequesites/#supported-operating-systems\\n"
             printf "\\n"
-            printf "      e.g: If you are seeing this message on a fresh install, you can run:"
+            printf "      e.g: If you are seeing this message on a fresh install, you can run:\\n"
             printf "             'PIHOLE_SKIP_OS_CHECK=true curl -sSL https://install.pi-hole.net | sudo -E bash'\\n"
             printf "\\n"
             printf "           If you are seeing this message after having run pihole -up:\\n"