fix command parsing and execution
diff --git a/git-auth.c b/git-auth.c
index d24ca6c..fa6ffc8 100644
--- a/git-auth.c
+++ b/git-auth.c
@@ -193,7 +193,9 @@ void exec_cmd (const s_symtable *cmd)
symtable_init(&xc);
symtable_add(&xc, SHELL);
symtable_add(&xc, "-c");
- symtable_add(&xc, cmd->sym[1]);
+ char buf[2048];
+ stracat(buf, sizeof(buf), cmd->sym + 1, cmd->count - 1);
+ symtable_add(&xc, buf);
log_cmd("EXEC", &xc);
cleanup();
execvp(xc.sym[0], (char **)xc.sym);