* Semi-automated using `ssf-formula` (v0.5.0)
* Fix errors shown below:
```bash
users-formula$ $(grep "\- yamllint" .travis.yml | sed -e "s:^\s\+-\s\(.*\):\1:")
./users/defaults.yaml
4:1 warning missing document start "---" (document-start)
5:20 warning truthy value should be one of [false, true] (truthy)
8:21 warning truthy value should be one of [false, true] (truthy)
9:15 warning truthy value should be one of [false, true] (truthy)
10:1 error too many blank lines (1 > 0) (empty-lines)
pillar.example
5:20 warning truthy value should be one of [false, true] (truthy)
14:13 warning truthy value should be one of [false, true] (truthy)
16:13 warning truthy value should be one of [false, true] (truthy)
19:13 warning truthy value should be one of [false, true] (truthy)
23:13 warning truthy value should be one of [false, true] (truthy)
25:5 error wrong indentation: expected 6 but found 4 (indentation)
37:23 warning truthy value should be one of [false, true] (truthy)
40:21 warning truthy value should be one of [false, true] (truthy)
41:20 warning truthy value should be one of [false, true] (truthy)
42:13 warning truthy value should be one of [false, true] (truthy)
47:17 warning truthy value should be one of [false, true] (truthy)
51:19 warning truthy value should be one of [false, true] (truthy)
52:23 warning truthy value should be one of [false, true] (truthy)
53:20 warning truthy value should be one of [false, true] (truthy)
54:21 warning truthy value should be one of [false, true] (truthy)
58:15 warning truthy value should be one of [false, true] (truthy)
59:15 warning truthy value should be one of [false, true] (truthy)
73:18 warning truthy value should be one of [false, true] (truthy)
75:20 warning truthy value should be one of [false, true] (truthy)
90:7 error duplication of key "privkey" in mapping (key-duplicates)
91:7 error duplication of key "pubkey" in mapping (key-duplicates)
117:44 warning too few spaces before comment (comments)
125:27 warning truthy value should be one of [false, true] (truthy)
153:17 warning truthy value should be one of [false, true] (truthy)
167:13 warning truthy value should be one of [false, true] (truthy)
171:16 warning truthy value should be one of [false, true] (truthy)
172:89 error line too long (102 > 88 characters) (line-length)
177:89 error line too long (102 > 88 characters) (line-length)
178:89 error line too long (100 > 88 characters) (line-length)
181:89 error line too long (94 > 88 characters) (line-length)
188:13 warning truthy value should be one of [false, true] (truthy)
189:12 warning truthy value should be one of [false, true] (truthy)
190:12 warning truthy value should be one of [false, true] (truthy)
test/salt/pillar/default.sls
25:89 error line too long (91 > 88 characters) (line-length)
175:89 error line too long (102 > 88 characters) (line-length)
180:89 error line too long (102 > 88 characters) (line-length)
181:89 error line too long (100 > 88 characters) (line-length)
184:89 error line too long (94 > 88 characters) (line-length)
```
