rephrase an open coded NULL in pathpath

diff --git a/lib/ast/pathpath.c b/lib/ast/pathpath.c
index 94dfa0fc9bf879bbb9a5c0cb24491a02ca338886..e20cecc57c1561774c0a08d07697a85ec2a7bf86 100644 (file)
--- a/lib/ast/pathpath.c
+++ b/lib/ast/pathpath.c
@@ -53,7 +53,7 @@ char *pathpath(char *path, const char *p, const char *a, int mode)
        path = buf;
     if (!p) {
        free(cmd);
-       cmd = a ? strdup(a) : (char *) 0;
+       cmd = a ? strdup(a) : NULL;
        return 0;
     }
     if (strlen(p) < PATH_MAX) {