transplant: use "getcommiteditor()" instead of explicit editor choice
This patch also enhances "test-transplant.t", because "hg transplant"
hasn't been explicitly tested around editor invocation and "--edit"
option.
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