Add flag to WRITE_FILE to append

1 files changed, 4 insertions, 2 deletions

diff --git a/Source/cmWriteFileCommand.h b/Source/cmWriteFileCommand.h
index 59b7ce4160..5a07e3d20c 100644
--- a/Source/cmWriteFileCommand.h
+++ b/Source/cmWriteFileCommand.h
@@ -60,8 +60,10 @@ public:
   virtual const char* GetFullDocumentation()
     {
     return
-      "WRITE_FILE(filename \"message to write\"...)\n"
-      "The first argument is the file name, the rest of the arguments are messages to write.";
+      "WRITE_FILE(filename \"message to write\"... [APPEND])\n"
+      "The first argument is the file name, the rest of the arguments are "
+      "messages to write. If the argument APPEND is specified, then "
+      "the message will be appended.";
     }
   
   cmTypeMacro(cmWriteFileCommand, cmCommand);