[gcalctool] Use arrows on superscript buttons (i.e. '↑n' instead of '⎕ⁿ')

[Robert Ancell <rancell src gnome org>]

commit 7cdf73f7125af371b508d9adbe27317ea1c86817
Author: Robert Ancell <robert ancell gmail com>
Date:   Mon Mar 29 09:48:02 2010 +1100

    Use arrows on superscript buttons (i.e. 'â??n' instead of 'â??â?¿')

 NEWS                    |    2 ++
 data/gcalctool.ui       |    5 ++---
 help/C/superscript.page |    2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/NEWS b/NEWS
index b8e7d45..5a349dc 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,8 @@ Overview of changes in gcalctool 5.31.1
     * Don't change window title to match mode (no need to)
     
     * Swap location of modulus and inverse buttons
+    
+    * Use arrows on superscript buttons (i.e. 'â??n' instead of 'â??â?¿')
 
 Overview of changes in gcalctool 5.30.0
 
diff --git a/data/gcalctool.ui b/data/gcalctool.ui
index 3320e3d..f103856 100644
--- a/data/gcalctool.ui
+++ b/data/gcalctool.ui
@@ -2911,8 +2911,7 @@
                     <child>
                       <object class="GtkLabel" id="label4">
                         <property name="visible">True</property>
-                        <property name="yalign">0</property>
-                        <property name="label">&#x2395;&lt;sub&gt;n&lt;/sub&gt;</property>
+                        <property name="label">&#x2193;n</property>
                         <property name="use_markup">True</property>
                       </object>
                     </child>
@@ -2943,7 +2942,7 @@
                     <child>
                       <object class="GtkLabel" id="label3">
                         <property name="visible">True</property>
-                        <property name="label">&#x2395;&lt;sup&gt;n&lt;/sup&gt;</property>
+                        <property name="label">&#x2191;n</property>
                         <property name="use_markup">True</property>
                       </object>
                     </child>
diff --git a/help/C/superscript.page b/help/C/superscript.page
index 7468a42..25332b8 100644
--- a/help/C/superscript.page
+++ b/help/C/superscript.page
@@ -19,7 +19,7 @@
     </p>
     </example>
     <p>
-    To enter superscript numbers with the mouse select the number mode using the the <gui>â??â?¿</gui> and <gui>â??n</gui> buttons.
+    To enter superscript numbers with the mouse select the number mode using the the <gui>â??n</gui> and <gui>â??n</gui> buttons.
     When one of these modes is active clicking the number buttons will enter numbers in superscript or subscript.
     To return to normal number mode click the active button.
     </p>