The file is: src\plugins\contrib\SmartIndent\manifest.xml
With such contents:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_plugin_manifest_file>
<SdkVersion major="1" minor="11" release="12" />
<Plugin name="SmartIndentXML">
<Value title="SmartIndentXML" />
<Value version="0.1" />
<Value description="Provides Smart indenting for XML and HTML" />
<Value author="Alpha" />
<Value authorEmail="" />
<Value authorWebsite="" />
<Value thanksTo="" />
<Value license="GPL" />
</Plugin>
</CodeBlocks_plugin_manifest_file>
Is this file automatically generated by some script?