[LyX/master] Fix thinko

[Juergen Spitzmueller]

commit a5004a394abf1eb64a6524b7e1c31795cfa71f80
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Fri Nov 9 11:28:38 2018 +0100

    Fix thinko
    
    Actually use the replaced path string :-/
---
 src/insets/InsetInfo.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/insets/InsetInfo.cpp b/src/insets/InsetInfo.cpp
index bb7f3af..52d98e3 100644
--- a/src/insets/InsetInfo.cpp
+++ b/src/insets/InsetInfo.cpp
@@ -159,7 +159,7 @@ set<string> getTexFileList(string const & filename)
        for (auto doc : doclist) {
                subst(doc, from_ascii("\r"), docstring());
                while (contains(doc, from_ascii("//")))
-                       subst(doc, from_ascii("//"), from_ascii("/"));
+                       doc = subst(doc, from_ascii("//"), from_ascii("/"));
                if (!doc.empty())
                        
list.insert(removeExtension(onlyFileName(to_utf8(doc))));
        }