tests/basics/dict_pop.py: Remove extra comma in call and fix grammar.
tests/basics/dict_pop.py: Remove extra comma in call and fix grammar.

kerneltask/micropython,adafruit/circuitpython,pramasoul/micropython,kerneltask/micropython,bvernoux/micropython,henriknelson/micropython,bvernoux/micropython,selste/micropython,tobbad/micropython,pramasoul/micropython,pramasoul/micropython,selste/micropython,pozetroninc/micropython,bvernoux/micropython,bvernoux/micropython,pozetroninc/micropython,MrSurly/micropython,henriknelson/micropython,tobbad/micropython,kerneltask/micropython,pozetroninc/micropython,MrSurly/micropython,pramasoul/micropython,pramasoul/micropython,tobbad/micropython,selste/micropython,bvernoux/micropython,adafruit/circuitpython,tobbad/micropython,pozetroninc/micropython,MrSurly/micropython,henriknelson/micropython,kerneltask/micropython,MrSurly/micropython,adafruit/circuitpython,adafruit/circuitpython,henriknelson/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,tobbad/micropython,adafruit/circuitpython,pozetroninc/micropython,adafruit/circuitpython,selste/micropython,henriknelson/micropython