fix cmake error

Author: JeffGarland

tests/CMakeLists.txt

@@ -21,7 +21,7 @@ foreach(testname ${ALL_TESTNAMES})
     add_executable(test.${testname})
     target_sources(test.${testname} PRIVATE ${testname}.test.cpp)
     target_include_directories(test.${testname} PRIVATE ${CMAKE_SOURCE_DIR}/include)
-    target_link_libraries(test.{testname} PRIVATE Catch2::Catch2WithMain)
+    target_link_libraries(test.${testname} PRIVATE Catch2::Catch2WithMain)
 endforeach()