[PATCH] build system: fix potential buffer overflow

This could potentially write one byte past the end of line.
Identified by fortify-headers.
---
 scripts/basic/split-include.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/basic/split-include.c b/scripts/basic/split-include.c
index 6ef29195e..93011d511 100644
--- a/scripts/basic/split-include.c
+++ b/scripts/basic/split-include.c
@@ -195,7 +195,7 @@ int main(int argc, const char * argv [])
 	ERROR_EXIT( "find" );
 
     line[0] = '\n';
-    while (fgets(line+1, buffer_size, fp_find))
+    while (fgets(line+1, buffer_size-1, fp_find))
     {
 	if (strstr(list_target, line) == NULL)
 	{
-- 
2.53.0