PDF export for page contain special character (') in its title break exported PDF's filename

PDF export for page contain special character (') in its title break exported PDF's filename.

1. Special character in between other characters:

• Page title: Test PDF export'char
• Exported PDF filename: ds-TestPDFexportchar- {1,time,ddMMyy-HHmm}

  -32.pdf

2. Special character at the end:

• Page title: Test PDF export 'abc'
• Exported PDF filename: ds-589828-090412-2211-36.pdf

For the first case, it is fixed with latest flyingPDF plugin version 2.5.4 in Confluence 4.2.

The second case is still occurring in Confluence version 4.2 and prior to that - 4.1.x.