sh: reduce scope of variables.

* streamc (shell, shell_arg): External variables become
internal.

1 files changed, 1 insertions, 1 deletions

diff --git a/stream.c b/stream.c
index d32241bd..e72c7e1c 100644
--- a/stream.c
+++ b/stream.c
@@ -103,7 +103,7 @@ const wchli_t *path_sep_chars = wli("/");
 
 val top_stderr;
 
-val shell, shell_arg;
+static val shell, shell_arg;
 
 void strm_base_init(struct strm_base *s)
 {