[Toybox] [PATCH] modprobe: fix parsing of short lines.

[enh]

The intent here seems to have been to ignore lines with too few
arguments to be valid, but since strtok() returns NULL at the end of the
string, if you only have "verb noun", you'd be falsely rejected.

Since we've kept a count anyway, just check the count.
---
 toys/pending/modprobe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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