In the commit 80f07b65f16e9538aca7fc5e124d2074e7e0b69e setting of '-' marker used
as the string termination sign was moved from base64 code:
from: 80f07b65f1 (diff-1b10896c267d2591dc2c08fd0542ab67L491)
to: 80f07b65f1 (diff-1b10896c267d2591dc2c08fd0542ab67R189)
However the decoding function wasn't fixed and still expects on extra
byte at the end of the encoded string which leads to data truncation
during extraction (was noticed on standalone code that was using base64
from OMPI).
725eea2819