Merge pull request #11062 from jcarrano/picocom-no-echo

serial.inc.mk: disable local echo in picocom.

makefiles/tools/serial.inc.mk

@@ -22,5 +22,5 @@ else ifeq ($(RIOT_TERMINAL),socat)
   TERMFLAGS ?= $(SOCAT_OUTPUT) open:$(PORT),b$(BAUD),echo=0,raw
 else ifeq ($(RIOT_TERMINAL),picocom)
   TERMPROG  ?= picocom
-  TERMFLAGS ?= --nolock --imap lfcrlf --echo --baud "$(BAUD)" "$(PORT)"
+  TERMFLAGS ?= --nolock --imap lfcrlf --baud "$(BAUD)" "$(PORT)"
 endif