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diff -up graphviz-2.30.1/contrib/prune/prune.c.orig10 graphviz-2.30.1/contrib/prune/prune.c
--- graphviz-2.30.1/contrib/prune/prune.c.orig10 2013-02-14 14:27:39.000000000 +0100
+++ graphviz-2.30.1/contrib/prune/prune.c 2013-07-12 13:35:44.315004975 +0200
@@ -128,7 +128,11 @@ int main(int argc, char **argv)
break;
}
case '?':
- if (isprint(optopt)) {
+ if (optopt == '?')
+ {
+ help_message(progname);
+ exit(EXIT_SUCCESS);
+ } else if (isprint(optopt)) {
fprintf(stderr, "Unknown option `-%c'.\n", optopt);
} else {
fprintf(stderr, "Unknown option character `\\x%X'.\n",
diff -up graphviz-2.30.1/contrib/prune/prune.1.orig10 graphviz-2.30.1/contrib/prune/prune.1
--- graphviz-2.30.1/contrib/prune/prune.1.orig10 2013-02-14 14:27:39.000000000 +0100
+++ graphviz-2.30.1/contrib/prune/prune.1 2013-07-12 13:45:30.544918729 +0200
@@ -20,6 +20,12 @@ prune \- Prune directed graphs
.BI \-N " attrspec"
]
[
+.B \-v
+]
+[
+.BR \- ( h | ? )
+]
+[
.I files ...
]
.SH DESCRIPTION
@@ -54,6 +60,12 @@ pruned node.
.I attrspec
is a string of the form
.IR attr "=" value.
+.TP
+.B \-v
+Verbose output.
+.TP
+.BR \-h " "\-?
+Prints the usage and exits.
.SH EXAMPLES
An input graph