[gnome-commander/ConvertWarningsToErrors] src/plugin_manager.cc: fix for -Wmissing-declarations

[Uwe Scholz <uwescholz src gnome org>]

commit 000579916ae8e2e4fde706564d15c565536e893d
Author: Mamoru TASAKA <mtasaka fedoraproject org>
Date:   Fri Apr 28 18:48:55 2017 +0900

    src/plugin_manager.cc: fix for -Wmissing-declarations
    
    src/plugin_manager.cc:274:13: error: no previous declaration for 'PluginData* 
get_selected_plugin(GtkCList*)' [-Werror=missing-declarations]
    
    No prototype declaration is written on header, so make this static

 src/plugin_manager.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugin_manager.cc b/src/plugin_manager.cc
index 974c97c..b61ebe1 100644
--- a/src/plugin_manager.cc
+++ b/src/plugin_manager.cc
@@ -271,7 +271,7 @@ GList *plugin_manager_get_all ()
 }
 
 
-PluginData *get_selected_plugin (GtkCList *list)
+static PluginData *get_selected_plugin (GtkCList *list)
 {
     return (PluginData *) gtk_clist_get_row_data (list, list->focus_row);
 }