Add some return() to remove indentation levels.

Change-Id: I48dc013fece0f4758ad54342f97ed51b33a9c2ff
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

mkspecs/features/ctest_testcase_common.prf

@@ -7,13 +7,26 @@ win32 {
 
 
 check.commands =
+QMAKE_EXTRA_TARGETS *= check
+
+insignificant_test: return()
+
 isEmpty(CMAKE_VERSION) {
     message("cmake executable not found. Not running CMake unit tests")
+    return()
+}
+
+win32 {
+    CTEST_VERSION = $$system(ctest --version 2>NUL)
 } else {
-    CTEST_VERSION = $$system(ctest --version)
+    CTEST_VERSION = $$system(ctest --version 2>/dev/null)
+}
+
 isEmpty(CTEST_VERSION) {
     message("ctest executable not found. Not running CMake unit tests")
-    } else {
+    return()
+}
+
 CMAKE_VERSION = $$last(CMAKE_VERSION)
 CMAKE_VERSION_MAJOR = $$section(CMAKE_VERSION, ., 0, 0)
 CMAKE_VERSION_MINOR = $$section(CMAKE_VERSION, ., 1, 1)
@@ -32,7 +45,9 @@ isEmpty(CMAKE_VERSION) {
 
 isEmpty(VERSION_OK) {
     message("cmake $$CMAKE_VERSION is too old for this test.")
-        } else {
+    return()
+}
+
 load(cmake_functions)
 
 CMAKE_BUILD_TYPE = Debug
@@ -79,13 +94,3 @@ isEmpty(CMAKE_VERSION) {
         $${CMAKE_MODULE_VERSIONS} \
         -DCMAKE_MODULES_UNDER_TEST=\"$$CMAKE_MODULES_UNDER_TEST\" && \
     $(TESTRUNNER) ctest --output-on-failure
-
-        }
-    }
-}
-
-insignificant_test:!isEmpty(check.commands) {
-    check.commands = -$${check.commands}
-}
-
-QMAKE_EXTRA_TARGETS *= check