David Garske 533f4a5c77 Speedups for the git clone calls in check scripts to use --depth 1.
```
BEFORE CHANGE:

time ./fips-check.sh windows keep
Receiving objects: 100% (18408/18408), 12.61 MiB | 625.00 KiB/s, done.
Receiving objects: 100% (7045/7045), 110.48 MiB | 488.00 KiB/s, done.

real	5m4.604s
user	1m38.039s
sys	0m25.984s

AFTER CHANGE:
time ./fips-check.sh windows keep
Receiving objects: 100% (642/642), 1.02 MiB | 1.26 MiB/s, done.
Receiving objects: 100% (767/767), 24.15 MiB | 487.00 KiB/s, done.

real	1m43.194s
user	1m34.100s
sys	0m24.046s
```
2018-11-09 09:36:41 -08:00
..
2018-06-27 16:22:12 -06:00
2018-06-27 16:22:12 -06:00
2018-06-27 16:22:12 -06:00

The wolfSSL manual is available at:
http://www.wolfssl.com/documentation/wolfSSL-Manual.pdf