chg: check lockfd at freecmdserveropts
We check for sockdirfd at freecmdserveropts but not lockfd, which is a bit
strange to people new to the code. Add a comment and an assert to make it
clear that lockfd should be closed earlier.
CC := gcc
CFLAGS := -g -O2 -Wall -Werror
prefix ?= /usr/bin
hgsh: hgsh.o
$(CC) -o $@ $<
install: hgsh
install -m755 hgsh $(prefix)
clean:
rm -f *.o hgsh