Fix get_(cmake|test)_property documentation (#11703)

The signature of get_test_property uses argument order

  test property VAR

not

  test VAR property

Also document the actual behavior when the property is not found.

1 files changed, 4 insertions, 3 deletions

diff --git a/Source/cmGetCMakePropertyCommand.h b/Source/cmGetCMakePropertyCommand.h
index c78671e..acbbfee 100644
--- a/Source/cmGetCMakePropertyCommand.h
+++ b/Source/cmGetCMakePropertyCommand.h
@@ -54,9 +54,10 @@ public:
     {
       return
         "  get_cmake_property(VAR property)\n"
-        "Get a property from the CMake instance.  The value of the "
-        "property is stored in the variable VAR. If the property is "
-        "not found, CMake will report an error. Some supported properties "
+        "Get a property from the CMake instance.  "
+        "The value of the property is stored in the variable VAR.  "
+        "If the property is not found, VAR will be set to \"NOTFOUND\".  "
+        "Some supported properties "
         "include: VARIABLES, CACHE_VARIABLES, COMMANDS, MACROS, and "
         "COMPONENTS.";
     }