Apply patch from Jiri Palecek to fix issue 83v3.2rc1.1

<http://code.google.com/p/distcc/issues/detail?id=83>:
fix bug in handling of several consecutive -Wp,... options.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/arg.c b/src/arg.c
index 5e06675..1b0dbae 100644
--- a/src/arg.c
+++ b/src/arg.c
@@ -515,6 +515,8 @@ int dcc_expand_preprocessor_options(char ***argv_ptr) {
             }
             free(argv);
             *argv_ptr = argv = new_argv;
+            i += extra_args - 1;
+            argc += extra_args - 1;
         }
     }
     return 0;