Don't write \PassThruChars if it is empty.

diff --git a/src/Layout.cpp b/src/Layout.cpp
index be51756328fa4c71bd41d5de27b5634f0c854ba6..1e8943377716c393cbefbeff80cb3ab64fa40f0a 100644 (file)
--- a/src/Layout.cpp
+++ b/src/Layout.cpp
@@ -1286,7 +1286,8 @@ void Layout::write(ostream & os) const
                os << "\tLabelCounter \"" << to_utf8(counter) << "\"\n";
        os << "\tFreeSpacing " << free_spacing << '\n';
        os << "\tPassThru " << pass_thru << '\n';
-       os << "\tPassThruChars " << to_utf8(pass_thru_chars) << '\n';
+       if (!pass_thru_chars.empty())
+               os << "\tPassThruChars " << to_utf8(pass_thru_chars) << '\n';
        os << "\tParbreakIsNewline " << parbreak_is_newline << '\n';
        switch (spacing.getSpace()) {
        case Spacing::Double: