[glom] Avoid unnecessary c_str() calls.

[Murray Cumming <murrayc src gnome org>]

commit 2cf6e15ac4195f0ff7b0e21bb2f45e60c006954d
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 1 14:12:42 2015 +0200

    Avoid unnecessary c_str() calls.

 glom/appwindow.cc                    |    3 +--
 glom/frame_glom.cc                   |    2 +-
 glom/import_csv/dialog_import_csv.cc |    2 +-
 glom/libglom/utils.cc                |    4 ++--
 4 files changed, 5 insertions(+), 6 deletions(-)
---
diff --git a/glom/appwindow.cc b/glom/appwindow.cc
index 949967a..d3268bb 100644
--- a/glom/appwindow.cc
+++ b/glom/appwindow.cc
@@ -760,8 +760,7 @@ void AppWindow::new_instance(const Glib::ustring& uri) //Override
 
   try
   {
-    Glib::spawn_command_line_sync(
-      command.c_str());
+    Glib::spawn_command_line_sync(command);
   }
   catch(const Glib::Error& ex)
   {
diff --git a/glom/frame_glom.cc b/glom/frame_glom.cc
index 3249174..a912297 100644
--- a/glom/frame_glom.cc
+++ b/glom/frame_glom.cc
@@ -575,7 +575,7 @@ void Frame_Glom::on_menu_file_export()
 
   const auto found_set = m_Notebook_Data.get_found_set();
 
-  std::fstream the_stream(filepath.c_str(), std::ios_base::out | std::ios_base::trunc);
+  std::fstream the_stream(filepath, std::ios_base::out | std::ios_base::trunc);
   if(!the_stream)
   {
     show_ok_dialog(_("Could Not Create File."), _("Glom could not create the specified file."), *pWindowApp, 
Gtk::MESSAGE_ERROR);
diff --git a/glom/import_csv/dialog_import_csv.cc b/glom/import_csv/dialog_import_csv.cc
index 3440770..cd1f6a3 100644
--- a/glom/import_csv/dialog_import_csv.cc
+++ b/glom/import_csv/dialog_import_csv.cc
@@ -124,7 +124,7 @@ Dialog_Import_CSV::Dialog_Import_CSV(BaseObjectType* cobject, const Glib::RefPtr
   m_encoding_combo->signal_changed().connect(sigc::mem_fun(*this, 
&Dialog_Import_CSV::on_combo_encoding_changed));
 
   // TODO: Reset parser encoding on selection changed.
-  m_parser = std::make_shared<CsvParser>(get_current_encoding().c_str());
+  m_parser = std::make_shared<CsvParser>(get_current_encoding());
   m_parser->signal_file_read_error().connect(sigc::mem_fun(*this, 
&Dialog_Import_CSV::on_parser_file_read_error));
   m_parser->signal_have_display_name().connect(sigc::mem_fun(*this, 
&Dialog_Import_CSV::on_parser_have_display_name));
   m_parser->signal_encoding_error().connect(sigc::mem_fun(*this, 
&Dialog_Import_CSV::on_parser_encoding_error));
diff --git a/glom/libglom/utils.cc b/glom/libglom/utils.cc
index ef92350..6d923fc 100644
--- a/glom/libglom/utils.cc
+++ b/glom/libglom/utils.cc
@@ -156,7 +156,7 @@ Glib::ustring Utils::string_replace(const Glib::ustring& src, const Glib::ustrin
   size_t src_index_section_start = 0;
   while(src_index < src_length)
   {
-    const bool found = (src.find(search_for.c_str(), src_index) == src_index);
+    const bool found = (src.find(search_for, src_index) == src_index);
     if(found)
     {
       result += src.substr(src_index_section_start, src_index - src_index_section_start);
@@ -736,7 +736,7 @@ Glib::ustring Utils::create_local_image_uri(const Gnome::Gda::Value& value)
       result = ("/tmp/glom_report_image_" + Glib::ustring(pchExtraNum) + ".png");
       ++m_temp_image_uri_number;
 
-      std::fstream the_stream(result.c_str(), std::ios_base::out | std::ios_base::trunc | 
std::ios_base::binary);
+      std::fstream the_stream(result, std::ios_base::out | std::ios_base::trunc | std::ios_base::binary);
       if(the_stream)
       {
         the_stream.write((char*)pData, size);