processes plugin: Unify the usage of `read_text_file_contents()`.

diff --git a/src/processes.c b/src/processes.c
index 736335e7ed402b9dbb61a3b9e8d9a68d21ec7b2f..c8a8f46060c7ab9657da8dc048264435f69863c5 100644 (file)
--- a/src/processes.c
+++ b/src/processes.c
@@ -2207,7 +2207,7 @@ static int ps_read_linux(gauge_t process_count[static STATE_MAX]) {
   closedir(proc);
 
   char buffer[4096] = {0};
-  ssize_t n = read_text_file_contents("/proc/stat", buffer, sizeof(buffer) - 1);
+  ssize_t n = read_text_file_contents("/proc/stat", buffer, sizeof(buffer));
   if (n <= 0) {
     ERROR("processes plugin: reading \"/proc/stat\" failed.");
     return -1;