readabiliy: rs-priority-0

Before
---
file: build/rs-priority-zero/json/core/replica-set-priority-0-member.json
source: source/core/replica-set-priority-0-member.txt
stats:
   coleman-liau: 10.196579572446552
   flesch-ease: 39.57946377672212
   flesch-level: 12.968193586698337
   foggy:
      count: 40
      factor: 0.09501187648456057
      threshold: 3
   sentence-count: 20
   sentence-len-avg: 21
   smog-index: 11.20814326018867
   word-count: 421

After
---
file: build/rs-priority-zero/json/core/replica-set-priority-0-member.json
source: source/core/replica-set-priority-0-member.txt
stats:
   coleman-liau: 9.858789625360231
   flesch-ease: 44.75171031199099
   flesch-level: 10.76538278411227
   foggy:
      count: 33
      factor: 0.09510086455331412
      threshold: 3
   sentence-count: 23
   sentence-len-avg: 15
   smog-index: 9.971965246562196
   word-count: 347

Signed-off-by: Sam Kleinman <samk@10gen.com