processes: fix pid format string

Follow up to 7c495a5.

diff --git a/src/processes.c b/src/processes.c
index faeb7c9..c516208 100644 (file)
--- a/src/processes.c
+++ b/src/processes.c
@@ -1047,7 +1047,7 @@ int ps_read_process (long pid, procstat_t *ps, char *state)
                /* No VMem data */
                ps->vmem_data = -1;
                ps->vmem_code = -1;
-               DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
+               DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
        }
 
        ps->cpu_user_counter = cpu_user_counter;