[hackers] [ubase] watch: If period is negative default to 0.1s || sin

[git]

commit cee1a0170d17f6f9bbddcaa97a30dd7fa4f0387f
Author: sin <s...@2f30.org>
Date:   Sun Nov 30 14:08:20 2014 +0000

    watch: If period is negative default to 0.1s

diff --git a/watch.c b/watch.c
index 1508883..51ac67f 100644
--- a/watch.c
+++ b/watch.c
@@ -28,6 +28,8 @@ main(int argc, char *argv[])
                period = strtof(EARGF(usage()), &end);
                if (*end != '\0' || errno != 0)
                        eprintf("invalid interval\n");
+               if (period < 0)
+                       period = 0.1f;
                interval = period * 1E6;
                break;
        default: