2.1.6 [W3C-EPUB3] Section 3.4.7. The meta Element
V0010: Leading and trailing whitespace is not trimmed
The specification states:
› 3.4.7 The meta Element The meta element provides a generic means of including package metadata, allowing the expression of primary metadata about the package or content and refinement of that metadata. ... Unless an individual property explicitly defines a different whitespace normalization algorithm, Reading Systems must trim all leading and trailing whitespace from the meta element values, as defined by the XML specification [XML], before further processing them.
Leading and trailing whitespace is not trimmed.