fallocate: clarify usage()

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/fallocate.c b/sys-utils/fallocate.c
index 512757f70e4fc6ea32bc8c236e5588dd3e9ccd94..91dee410bbb085e4086656fd1fca3972a0dcf671 100644 (file)
--- a/sys-utils/fallocate.c
+++ b/sys-utils/fallocate.c
@@ -77,18 +77,20 @@ static void __attribute__((__noreturn__)) usage(FILE *out)
        fprintf(out,
              _(" %s [options] <filename>\n"), program_invocation_short_name);
        fputs(USAGE_OPTIONS, out);
-       fputs(_(" -c, --collapse-range collapse space in the file\n"), out);
-       fputs(_(" -d, --dig-holes      detect and dig holes\n"), out);
-       fputs(_(" -l, --length <num>   length of the (de)allocation, in bytes\n"), out);
-       fputs(_(" -n, --keep-size      don't modify the length of the file\n"), out);
-       fputs(_(" -o, --offset <num>   offset of the (de)allocation, in bytes\n"), out);
-       fputs(_(" -p, --punch-hole     punch holes in the file (implies --keep-size)\n"), out);
-       fputs(_(" -z, --zero-range     zeroes a range in the file\n"), out);
+
+       fputs(_(" -c, --collapse-range remove a range from the file\n"), out);
+       fputs(_(" -d, --dig-holes      detect zeroes and replace with holes\n"), out);
+       fputs(_(" -l, --length <num>   length for range operations, in bytes\n"), out);
+       fputs(_(" -n, --keep-size      maintain the apparent size of the file\n"), out);
+       fputs(_(" -o, --offset <num>   offset for range operations, in bytes\n"), out);
+       fputs(_(" -p, --punch-hole     replace a range with a hole (implies -n)\n"), out);
+       fputs(_(" -z, --zero-range     zero and ensure allocation of a range\n"), out);
        fputs(_(" -v, --verbose        verbose mode\n"), out);
 
        fputs(USAGE_SEPARATOR, out);
        fputs(USAGE_HELP, out);
        fputs(USAGE_VERSION, out);
+
        fprintf(out, USAGE_MAN_TAIL("fallocate(1)"));
 
        exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);