delta_calibrate: Use config.getfloatlist() for parsing "stable positions"

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/delta_calibrate.py

@@ -14,14 +14,7 @@ from . import probe
 
 # Load a stable position from a config entry
 def load_config_stable(config, option):
-    spos = config.get(option)
-    try:
-        sa, sb, sc = map(float, spos.split(','))
-    except:
-        msg = "Unable to parse stable position '%s'" % (spos,)
-        logging.exception(msg)
-        raise config.error(msg)
-    return sa, sb, sc
+    return config.getfloatlist(option, count=3)
 
 
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