tplist: Print one-based location and argument indices

The `trace` and `argdist` tools expect location and argument indices
to start at 1 -- the first argument is arg1, and so on. The `tplist`
tool now prints UDST argument indices (and location indices, for
consistency) as 1-based as well.

tools/tplist.py

@@ -68,7 +68,7 @@ def print_tracepoints():
 def print_usdt_argument_details(location):
         for idx in xrange(0, location.num_arguments):
                 arg = location.get_argument(idx)
-                print("    argument #%d %s" % (idx, arg))
+                print("    argument #%d %s" % (idx+1, arg))
 
 def print_usdt_details(probe):
         if args.verbosity > 0:
@@ -76,7 +76,7 @@ def print_usdt_details(probe):
                 if args.verbosity > 1:
                         for idx in xrange(0, probe.num_locations):
                                 loc = probe.get_location(idx)
-                                print("  location #%d %s" % (idx, loc))
+                                print("  location #%d %s" % (idx+1, loc))
                                 print_usdt_argument_details(loc)
                 else:
                         print("  %d location(s)" % probe.num_locations)