gnu: cmake: Update patch to work with new system.

* gnu/packages/patches/cmake-fix-tests.patch: Update to work with -p1.
* gnu/packages/cmake.scm (cmake): Drop patch flag -p0.

gnu/packages/cmake.scm

@@ -41,7 +41,6 @@ (define-public cmake
     (build-system gnu-build-system)
     (arguments
      '(#:test-target "test"
-       #:patch-flags '("-p0")
        #:phases (alist-replace
                  'configure
                  (lambda* (#:key outputs #:allow-other-keys)

gnu/packages/patches/cmake-fix-tests.patch

---- Tests/CMakeLists.txt	2013-03-20 22:57:13.000000000 +0100
-+++ Tests/CMakeLists.txt	2013-03-20 22:58:02.000000000 +0100
+--- a/Tests/CMakeLists.txt	2013-03-20 22:57:13.000000000 +0100
++++ b/Tests/CMakeLists.txt	2013-03-20 22:58:02.000000000 +0100
 @@ -1706,16 +1706,17 @@
      PASS_REGULAR_EXPRESSION "Could not find executable"
      FAIL_REGULAR_EXPRESSION "SegFault")
@@ -28,8 +28,8 @@
  
    configure_file(
      "${CMake_SOURCE_DIR}/Tests/CTestTestConfigFileInBuildDir/test1.cmake.in"
---- Utilities/cmcurl/CMakeLists.txt	2013-03-20 22:57:13.000000000 +0100
-+++ Utilities/cmcurl/CMakeLists.txt	2013-03-20 23:08:41.000000000 +0100
+--- a/Utilities/cmcurl/CMakeLists.txt	2013-03-20 22:57:13.000000000 +0100
++++ b/Utilities/cmcurl/CMakeLists.txt	2013-03-20 23:08:41.000000000 +0100
 @@ -729,8 +729,9 @@
  ADD_EXECUTABLE(LIBCURL Testing/curltest.c)
  TARGET_LINK_LIBRARIES(LIBCURL cmcurl ${CMAKE_DL_LIBS})