erlang: improve livecheck

Author: herbygillot

lang/erlang/Portfile

@@ -154,5 +154,5 @@ default_variants    +ssl
 
 livecheck.type      regex
 livecheck.version   ${version}
-livecheck.url       ${homepage}download/
+livecheck.url       ${homepage}downloads/
 livecheck.regex     "otp_src_(\[0-9\]+\\.\[0-9\]+(\\.\[0-9\])?)\\.tar\\.gz"