Fix incorrect icons in ui files

diff --git a/ksnapshot/ksnapshotwidget.ui b/ksnapshot/ksnapshotwidget.ui
index 10082ab..4d94d5e 100644
--- a/ksnapshot/ksnapshotwidget.ui
+++ b/ksnapshot/ksnapshotwidget.ui
@@ -208,7 +208,7 @@
                         <string>&amp;Save As...</string>
                     </property>
                     <property name="iconSet">
-                        <iconset>"filesave"</iconset>
+                        <iconset>"document-save"</iconset>
                     </property>
                     <property name="whatsThis" stdset="0">
                         <string>Click this button to save the current snapshot. To quickly save the snapshot without showing the file dialog, press Ctrl+Shift+S. The filename is automatically incremented after each save.</string>
@@ -222,7 +222,7 @@
                         <string>&amp;Copy to Clipboard</string>
                     </property>
                     <property name="iconSet">
-                        <iconset>"editcopy"</iconset>
+                        <iconset>"edit-copy"</iconset>
                     </property>
                     <property name="whatsThis" stdset="0">
                         <string>Click this button to copy the current snapshot to the clipboard.</string>
@@ -236,7 +236,7 @@
                         <string>&amp;Print...</string>
                     </property>
                     <property name="iconSet">
-                        <iconset>"fileprint"</iconset>
+                        <iconset>"document-print"</iconset>
                     </property>
                     <property name="whatsThis" stdset="0">
                         <string>Click this button to print the current screenshot.</string>