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800436d2af
Commit 73ec3c954b21522352b6f5cce9a700d6bf30ccf4 added a way to print
only a part of the report string (repstr) to support decoding individual
string list items out of repstr.
The repstr is normally printed through _safe_repstr_output so that any
JSON_QUOTE character ('"') found within the repstr is escaped to not
interfere with value quoting in JSON format.
However, the commit 73ec3c954b21522352b6f5cce9a700d6bf30ccf4 missed
checking the 'len' argument passed to _safe_repstr_output function when
adding the rest of the repstr after all previous JSON_QUOTE characters
were escaped (when calling the last dm_pool_grow_object). When 'len'
is 0, we need to calculate the 'len' ourselves in the function by
simply calling strlen. This is because 'len' is passed to the function
only if we're taking a part of repstr, not as a whole.