Prefix M503 output with echo:#17665

Merged

thinkyhead merged 2 commits intoMarlinFirmware:bugfix-2.0.xfrom

ellensp:bugfix-2.0.x-17660

Apr 25, 2020

Commits on Apr 23, 2020

Fix 17660

ellensp
authored and
ellensp
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Commits on Apr 25, 2020

Merge remote-tracking branch 'upstream/bugfix-2.0.x' into bf2_m503_clean_17665
thinkyhead
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