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vdiff: exit if diff is empty

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currently vdiff will display an empty window if there is no diff.
	Print a message and exit early instead.
This commit is contained in:
phil9 2024-05-09 17:18:45 +00:00
parent 039015ad71
commit 025a2d172e
1 changed files with 1 additions and 1 deletions
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2
sys/src/cmd/vdiff.c
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@ -613,7 +613,7 @@ threadmain(int argc, char *argv[])
}ARGEND;
parse(0);
if(nblocks==0){
if(nblocks==1 && blocks[0]->nlines==0){
fprint(2, "no diff\n");
exits(nil);
}