[clang-tidy] use const pointer parameter

Found with readability-non-const-parameter

Signed-off-by: Rosen Penev <rosenp@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/afc.c b/src/afc.c
index d0f5cb7..fe99852 100644
--- a/src/afc.c
+++ b/src/afc.c
@@ -355,7 +355,7 @@ static afc_error_t afc_receive_data(afc_client_t client, char **bytes, uint32_t
 /**
  * Returns counts of null characters within a string.
  */
-static uint32_t count_nullspaces(char *string, uint32_t number)
+static uint32_t count_nullspaces(const char *string, uint32_t number)
 {
         uint32_t i = 0, nulls = 0;