Remove dash before version on --help output

Currently, --version doesn't print a dash while --help does.  Example:

    $ firejail --version | grep 'version 0'
    firejail version 0.9.73
    $ firejail --help | grep 'version 0'
    firejail - version 0.9.73

For consistency, always print the version without a dash.

Commands used to search and replace:

    $ git grep -IFlz ' - version' -- src | xargs -0 -I '{}' sh -c
      "printf '%s\n' \"\$(sed 's/ - version/ version/' '{}')\" >'{}'"

1 files changed, 1 insertions, 1 deletions

diff --git a/src/firemon/usage.c b/src/firemon/usage.c
index 169ec9163..1cb1b7cfc 100644
--- a/src/firemon/usage.c
+++ b/src/firemon/usage.c
@@ -79,6 +79,6 @@ static char *help_str =
         "\n";
 
 void usage(void) {
-        printf("firemon - version %s\n", VERSION);
+        printf("firemon version %s\n", VERSION);
         puts(help_str);
 }