Fix a bug in StringPrintf() that caused it to not print large strings properly.

R=nilton
DELTA=1  (0 added, 0 deleted, 1 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=2886


git-svn-id: https://gflags.googlecode.com/svn/trunk@59 6586e3c6-dcc4-952a-343f-ff74eb82781d