Quick fix for system info text always being scrolled out of view when loaded for the first time

Added an API method to Text datablocks for moving the cursor to a specific line in the
file. This makes it possible to reset the cursor position at the end of the sysinfo
operator.

release/scripts/modules/sys_info.py

@@ -163,4 +163,7 @@ def write_sysinfo(op):
         for l in glext:
             output.write("\t\t%r\n" % (l))
 
+    # Back to first line, so everything is still in sight
+    output.jump(1)
+
     op.report({'INFO'}, "System information generated in 'system-info.txt'")