scmutil: remove special handling of pats==("",) in matchandpats() (API)
I don't know under what circumstances we used to pass that value, but
we don't seem to do it now.
Differential Revision: https://phab.mercurial-scm.org/D5921
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