flowtop: Don't duplicate copyright/bug report/license string

Move the copyright/bug report/license string to an own constant and use
it for the output of help() and version() to avoid duplication and
prevent the strings from getting out of sync. This makes the text
section of flowtop.o slightly smaller:

before:
   text	   data	    bss	    dec	    hex	filename
  15601	      4	     48	  15653	   3d25	flowtop/flowtop.o

after:
   text	   data	    bss	    dec	    hex	filename
  15228	      4	     48	  15280	   3bb0	flowtop/flowtop.o

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

0 files changed, 0 insertions, 0 deletions