[scripts][main_cli] Only modify the logger format when showing debug messages

Fixes #40

beat/cmdline/scripts/main_cli.py

@@ -70,7 +70,7 @@ def main(ctx, test_mode, version, prefix, cache, user, token, platform, editor):
         console_handler.setLevel(logging.INFO) # default level
 
         format_str = "%(message)s"
-        if 'verbosity' in ctx.meta and ctx.meta['verbosity'] >= 2:
+        if 'verbosity' in ctx.meta and ctx.meta['verbosity'] > 2:
             format_str = "[%(asctime)s - %(name)s] %(levelname)s: %(message)s"
 
         formatter = logging.Formatter(format_str, datefmt="%d/%b/%Y %H:%M:%S")