Added simple script to update copyright dates.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14449 178a84e3-b1eb-0310-8ba1-8eac791a3b58

tools/update_copyright.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/awk -f
+# A simple awk script to update copyright lines
+# It can be used in a simple loop, e.g.:
+#
+# cd src
+# for i in $a; do 
+#     echo $i
+#     ../update_copyright.sh $i >xx
+#     rc=$?
+#     if [ $rc == "0" ]; then 
+#         echo "$i contains no (c)."
+#     else
+#         mv xx $i
+#     fi
+# done
+
+
+BEGIN   {
+            found_something=0; 
+        }
+/\(C\)/ {
+            if(index($4,"-")>0) 
+               new_years=gensub("-.*$","-2013",1,$4); 
+	    else
+               new_years=$4"-2013";
+	    line = $0;
+            sub($4,new_years,line);
+	    print line;
+	    found_something=1;
+  	    next;
+        }
+        { 
+	    print $0;
+        }
+END     {
+            exit(found_something);
+        }
+