Fixed gdbserver response to 'vCont?' command.
Fixed gdbserver response to 'vCont?' command.

Search-replace error introduced during PEP8 rename.

mbedmicro/pyOCD,mesheven/pyOCD,pyocd/pyOCD,mbedmicro/pyOCD,mesheven/pyOCD,mesheven/pyOCD,pyocd/pyOCD,mbedmicro/pyOCD,flit/pyOCD,flit/pyOCD