cond: fixup path buffer size to fit the longest condition name

cond_path() and cond_checkpath() built the /run/finit/cond/ path in a
MAX_ARG_LEN buffer, so condition names longer than ~40 chars were
truncated.

src/cond-w.c

@@ -206,7 +206,7 @@ static void cond_bump_reconf(void)
 
 static int cond_checkpath(const char *path)
 {
-	char buf[MAX_ARG_LEN], *dir;
+	char buf[MAX_COND_LEN + sizeof(_PATH_COND)], *dir;
 
 	strlcpy(buf, path, sizeof(buf));
 	dir = dirname(buf);

src/cond.c

@@ -47,7 +47,7 @@ const char *condstr(enum cond_state s)
 const char *cond_path(const char *name)
 {
 	static char path[256];
-	char tmp[MAX_ARG_LEN];
+	char tmp[MAX_COND_LEN + sizeof(_PATH_COND)];
 
 	snprintf(tmp, sizeof(tmp), _PATH_COND "%s", name);