By default, DITA2Go includes a processing instruction (PI) in plugin.xml, specifying the plug-in schema version used to validate plugin.xml. To omit the processing instruction:
[EclipseHelpOptions] ; IncludeVersionPI = Yes (default, include PI with version ; specified by PluginSchemaVersion at start of plugin.xml) or No IncludeVersionPI = No
When IncludeVersionPI=Yes, DITA2Go includes a PI of the following form at the start of plugin.xml:
<?eclipse version="3.2"?>
This processing instruction is required when you provide Eclipse Help files in a .jar file; see §21.3.3 Configuring the Java manifest file for Eclipse Help. The value of the version attribute represents the plug-in schema version; see §21.3.4.3 Specifying the plug-in schema version for plugin.xml.