+//usage:#define strings_trivial_usage
+//usage: "[-afo] [-n LEN] [FILE]..."
+//usage:#define strings_full_usage "\n\n"
+//usage: "Display printable strings in a binary file\n"
+//usage: "\n -a Scan whole file (default)"
+//usage: "\n -f Precede strings with filenames"
+//usage: "\n -n LEN At least LEN characters form a string (default 4)"
+//usage: "\n -o Precede strings with decimal offsets"