Update CMakeLists.txt

Co-authored-by: Sam Reeve <[email protected]>

Author: JBludau

CMakeLists.txt

@@ -237,7 +237,7 @@ option(Cabana_INSTALL_TEST_EXECUTABLES "Install Cabana test executables" OFF)
 
 if(Cabana_ENABLE_TESTING)
   find_package(GTest 1.10 CONFIG)
-  if(Gtest_FOUND)
+  if(GTest_FOUND)
     message(STATUS "Gtest found")
   else()
     message(STATUS "Gtest not found: fetching")