Bug: String Parser Creates an empty String

[SBird1337]

Sometimes, and empty string is created. Steps to reproduce: 1) Compile the following script:

script MinimalCompleteStringParserBreaks {
    msgbox(format("Long cat is loooong once again\p"
                  "Very very loooong and we need to have "
                  "multiple lines to fit its loooongness"))
}

2) Observe, that the string parser creates an empty string in the output:

MinimalCompleteStringParserBreaks::
    msgbox MinimalCompleteStringParserBreaks_Text_0
    return

MinimalCompleteStringParserBreaks_Text_0:
    .string "Long cat is loooong once again\p"
    .string ""
    .string "Very very loooong and we need to have\n"
    .string ""
    .string "multiple lines to fit its loooongness$"

[huderlem]

659b73bb074be01cb5810eb21c1bbfdbb821c05e