[gnome-commander/ConvertWarningsToErrors] Adds static keyword to remove gcc warnings

[Uwe Scholz <uwescholz src gnome org>]

commit 49ffe03e378e688c73ac91ab1b75060b83012f9a
Author: Uwe Scholz <uwescholz src gnome org>
Date:   Sat Apr 22 16:37:01 2017 +0200

    Adds static keyword to remove gcc warnings

 src/gnome-cmd-convert.cc |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)
---
diff --git a/src/gnome-cmd-convert.cc b/src/gnome-cmd-convert.cc
index d5d02cc..0a57895 100644
--- a/src/gnome-cmd-convert.cc
+++ b/src/gnome-cmd-convert.cc
@@ -52,13 +52,13 @@ inline gint word_is_roman_numeral (gchar *text)
 }
 
 
-gchar *gcmd_convert_unchanged (gchar *string)
+static gchar *gcmd_convert_unchanged (gchar *string)
 {
     return string;
 }
 
 
-gchar *gcmd_convert_ltrim (gchar *string)
+static gchar *gcmd_convert_ltrim (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -67,7 +67,7 @@ gchar *gcmd_convert_ltrim (gchar *string)
 }
 
 
-gchar *gcmd_convert_rtrim (gchar *string)
+static gchar *gcmd_convert_rtrim (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -76,7 +76,7 @@ gchar *gcmd_convert_rtrim (gchar *string)
 }
 
 
-gchar *gcmd_convert_strip (gchar *string)
+static gchar *gcmd_convert_strip (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -85,7 +85,7 @@ gchar *gcmd_convert_strip (gchar *string)
 }
 
 
-gchar *gcmd_convert_lowercase (gchar *string)
+static gchar *gcmd_convert_lowercase (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -98,7 +98,7 @@ gchar *gcmd_convert_lowercase (gchar *string)
 }
 
 
-gchar *gcmd_convert_uppercase (gchar *string)
+static gchar *gcmd_convert_uppercase (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -113,7 +113,7 @@ gchar *gcmd_convert_uppercase (gchar *string)
 
 // Function to set the first letter of each word to uppercase, according the "Chicago Manual of Style" 
(http://www.chicagomanualofstyle.org/)
 // No needed to reallocate
-gchar *gcmd_convert_sentence_case (gchar *string)
+static gchar *gcmd_convert_sentence_case (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -229,7 +229,7 @@ gchar *gcmd_convert_sentence_case (gchar *string)
 }
 
 
-gchar *gcmd_convert_initial_caps (gchar *string)
+static gchar *gcmd_convert_initial_caps (gchar *string)
 {
     if (!string || !*string)
         return string;
@@ -284,7 +284,7 @@ gchar *gcmd_convert_initial_caps (gchar *string)
 }
 
 
-gchar *gcmd_convert_toggle_case (gchar *string)
+static gchar *gcmd_convert_toggle_case (gchar *string)
 {
     return string;
 }