fixing unicode glitch in messages.properties

refs PR #650 #650 (review)

src/main/resources/com/adobe/epubcheck/util/messages.properties

@@ -20,7 +20,7 @@ argument_needed=At least one argument expected
 version_argument_expected=Version number omitted from the -v argument.
 mode_argument_expected=Type omitted from the -mode argument.
 profile_argument_expected=Profile name omitted after the -profile argument.
-profile_unknown=Unknown profile '%1$s', using default validation profile.
+profile_unknown=Unknown profile '%1$s', using default validation profile.
 no_file_specified=No file specified in the arguments. Exiting.
 mode_version_ignored=The mode and version arguments are ignored for epubs. They are retrieved from the files.
 mode_required=Mode required for non-epub files. Default version is 3.0.