py: Make functions static where appropriate.

1 files changed, 1 insertions, 1 deletions

diff --git a/py/vstr.c b/py/vstr.c
index c23bbaa00..03b03d0a3 100644
--- a/py/vstr.c
+++ b/py/vstr.c
@@ -263,7 +263,7 @@ copy:
     vstr->buf[vstr->len] = 0;
 }
 
-char *vstr_ins_blank_bytes(vstr_t *vstr, size_t byte_pos, size_t byte_len) {
+STATIC char *vstr_ins_blank_bytes(vstr_t *vstr, size_t byte_pos, size_t byte_len) {
     if (vstr->had_error) {
         return NULL;
     }