[LyX/master] Fix #10907 compiler warnings.

[Richard Heck]

commit 6d1a3bc9a3b521c3142f6f799f35de830cd2921b
Author: Richard Heck <rgh...@lyx.org>
Date:   Fri Dec 15 23:13:39 2017 -0500

    Fix #10907 compiler warnings.
---
 src/BufferParams.cpp |   17 ++++++++---------
 1 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/BufferParams.cpp b/src/BufferParams.cpp
index 2f7058a..711f52f 100644
--- a/src/BufferParams.cpp
+++ b/src/BufferParams.cpp
@@ -2674,9 +2674,8 @@ OutputParams::FLAVOR BufferParams::getOutputFlavor(string 
const & format) const
                if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
                        // Get shortest path to format
                        Graph::EdgePath path;
-                       for (vector<string>::const_iterator it = backs.begin();
-                           it != backs.end(); ++it) {
-                               Graph::EdgePath p = 
theConverters().getPath(*it, dformat);
+                       for (auto const & bit : backs) {
+                               Graph::EdgePath p = 
theConverters().getPath(bit, dformat);
                                if (!p.empty() && (path.empty() || p.size() < 
path.size())) {
                                        path = p;
                                }
@@ -3191,21 +3190,21 @@ void BufferParams::writeEncodingPreamble(otexstream & 
os,
                        language->encoding()->package();
 
                // Create list of inputenc options:
-               set<string> encodings;
+               set<string> encoding_set;
                // luainputenc fails with more than one encoding
                if (!features.runparams().isFullUnicode()) // if we reach this 
point, this means LuaTeX with TeX fonts
                        // list all input encodings used in the document
-                       encodings = features.getEncodingSet(doc_encoding);
+                       encoding_set = features.getEncodingSet(doc_encoding);
 
                // If the "japanese" package (i.e. pLaTeX) is used,
                // inputenc must be omitted.
                // see 
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg129680.html
-               if ((!encodings.empty() || package == Encoding::inputenc)
+               if ((!encoding_set.empty() || package == Encoding::inputenc)
                    && !features.isRequired("japanese")
                    && !features.isProvided("inputenc")) {
                        os << "\\usepackage[";
-                       set<string>::const_iterator it = encodings.begin();
-                       set<string>::const_iterator const end = encodings.end();
+                       set<string>::const_iterator it = encoding_set.begin();
+                       set<string>::const_iterator const end = 
encoding_set.end();
                        if (it != end) {
                                os << from_ascii(*it);
                                ++it;
@@ -3213,7 +3212,7 @@ void BufferParams::writeEncodingPreamble(otexstream & os,
                        for (; it != end; ++it)
                                os << ',' << from_ascii(*it);
                        if (package == Encoding::inputenc) {
-                               if (!encodings.empty())
+                               if (!encoding_set.empty())
                                        os << ',';
                                os << from_ascii(doc_encoding);
                        }