gvpr: warning: option -- unrecognized gvpr version 2.38.0 (20140413.2041)

gvpr: warning: option -- unrecognized gvpr: warning: option -h unrecognized gvpr: warning: option -e unrecognized gvpr: warning: option -l unrecognized gvpr: warning: option -p unrecognized gvpr: No program supplied via argument or -f option Usage: gvpr [-o <ofile>] [-a <args>] ([-f <prog>] | 'prog') [files] -c - use source graph for output -f <pfile> - find program in file <pfile> -i - create node induced subgraph -a <args> - string arguments available as ARGV[0..] -o <ofile> - write output to <ofile>; stdout by default -n - no read-ahead of input graphs -q - turn off warning messages -V - print version info -? - print usage info If no files are specified, stdin is used