[glibmm] C++11: Use initializer list instead of push_back() for initial single item.

[Murray Cumming <murrayc src gnome org>]

commit 757fab512e4f390fa6e8645202efd87eebb42b66
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Feb 5 23:27:15 2016 +0100

    C++11: Use initializer list instead of push_back() for initial single item.

 gio/src/appinfo.ccg          |   12 ++++--------
 tests/glibmm_variant/main.cc |    7 ++-----
 2 files changed, 6 insertions(+), 13 deletions(-)
---
diff --git a/gio/src/appinfo.ccg b/gio/src/appinfo.ccg
index b0aa292..c9c251e 100644
--- a/gio/src/appinfo.ccg
+++ b/gio/src/appinfo.ccg
@@ -51,8 +51,7 @@ Glib::RefPtr<AppInfo> AppInfo::create_duplicate() const
 
 bool AppInfo::launch(const Glib::RefPtr<Gio::File>& file, const Glib::RefPtr<AppLaunchContext>& 
launch_context)
 {
-  std::vector< Glib::RefPtr<Gio::File> > vec;
-  vec.push_back(file);
+  std::vector< Glib::RefPtr<Gio::File> > vec = {file};
 
   GError* gerror = nullptr;
   const bool retvalue = g_app_info_launch(gobj(),
@@ -66,8 +65,7 @@ bool AppInfo::launch(const Glib::RefPtr<Gio::File>& file, const Glib::RefPtr<App
 
 bool AppInfo::launch(const Glib::RefPtr<Gio::File>& file)
 {
-  std::vector< Glib::RefPtr<Gio::File> > vec;
-  vec.push_back(file);
+  std::vector< Glib::RefPtr<Gio::File> > vec = {file};
 
   GError* gerror = nullptr;
   const bool retvalue = g_app_info_launch(gobj(),
@@ -81,8 +79,7 @@ bool AppInfo::launch(const Glib::RefPtr<Gio::File>& file)
 
 bool AppInfo::launch_uri(const std::string& uri, const Glib::RefPtr<AppLaunchContext>& launch_context)
 {
-  std::vector<std::string> vec;
-  vec.push_back(uri);
+  std::vector<std::string> vec = {uri};
 
   GError* gerror = nullptr;
   const bool retvalue = g_app_info_launch_uris(gobj(),
@@ -96,8 +93,7 @@ bool AppInfo::launch_uri(const std::string& uri, const Glib::RefPtr<AppLaunchCon
 
 bool AppInfo::launch_uri(const std::string& uri)
 {
-  std::vector<std::string> vec;
-  vec.push_back(uri);
+  std::vector<std::string> vec = {uri};
 
   GError* gerror = nullptr;
   const bool retvalue = g_app_info_launch_uris(gobj(),
diff --git a/tests/glibmm_variant/main.cc b/tests/glibmm_variant/main.cc
index 47943de..bf17d14 100644
--- a/tests/glibmm_variant/main.cc
+++ b/tests/glibmm_variant/main.cc
@@ -51,8 +51,7 @@ int main(int, char**)
   
   
   //vector<std::string>:
-  std::vector<std::string> vec_strings;
-  vec_strings.push_back("a");
+  std::vector<std::string> vec_strings = {"a"};
   auto variant_vec_strings =
     Glib::Variant<std::vector<std::string> >::create(vec_strings);
 
@@ -146,9 +145,7 @@ int main(int, char**)
   typedef std::vector< std::map< Glib::ustring, Glib::Variant<int> > >
     ComplexVecType;
 
-  ComplexVecType complex_vector;
-  complex_vector.push_back(complex_dict1);
-  complex_vector.push_back(complex_dict2);
+  ComplexVecType complex_vector = {complex_dict1, complex_dict2};
 
   auto complex_variant =
     Glib::Variant<ComplexVecType>::create(complex_vector);