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Pring usage when no arguments are supplied.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@5 81a1dc3b-b13d-400b-aceb-764788c761c2
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@@ -525,6 +525,11 @@ int main ( int argc, char * argv [] )
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else
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progname = argv[0];
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if (argc == 1) {
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usage();
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return 0;
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}
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while ((ch = getopt(argc,argv,"?efo:ru:")) != -1) {
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switch (ch) {
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case 'e':
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