NLSY: Pad parsing of data dictionary

[ericbusboom]

The data dictionary fails to parse value label line like these:

YEMP-103500.01.01 : 12 FOR SCHOOL EMPLOYEES ONLY: School shut down
YEMP-105800.01.01 : 3 SCHOOL EMPLOYEES: SCHOOL WAS NOT IN SESSION FOR THIS PERIOD
TRANS_STATUS : 3 Transcript requested: District refusal