Standardize version output

Changes:

* Only print the version line in the print_version function
* Add a print_version function where missing (put it in usage.c if the
  file exists)
* Always a blank line after the version

1 files changed, 1 insertions, 0 deletions

diff --git a/src/firemon/firemon.h b/src/firemon/firemon.h
index 8b6e75fc3..be83352bb 100644
--- a/src/firemon/firemon.h
+++ b/src/firemon/firemon.h
@@ -49,6 +49,7 @@ void firemon_sleep(int st);
 void procevent(pid_t pid) __attribute__((noreturn));
 
 // usage.c
+void print_version(void);
 void usage(void);
 
 // top.c