Check issue tracker or github, this was fixed after 4.3 came out. It's probably a eZ Publish 4.3 issue where templates by mistake got the missing line break fix during build process (a line break was added on all files that did not contain one at last line, but this causes inline tags to ouput trailing whitespace since line break is threated as withspace in html).
So either 1. upgrade or 2. manually fix your ezxml inline tags templates in design/standard/templates/content/datatype/view/ezxmltags or 3. try downloading from git:
