fix bug.

Author: JustinRayAngus

Examples/Tests/implicit/CMakeLists.txt

@@ -31,7 +31,7 @@ add_warpx_test(
     OFF  # dependency
 )
 
-if(WarpX_PETSC) {
+if(WarpX_PETSC)
     add_warpx_test(
         test_2d_curl_curl_petsc_pc  # name
         2  # dims
@@ -41,7 +41,7 @@ if(WarpX_PETSC) {
         "analysis_default_regression.py --path diags/diag1000200"  # checksum
         OFF  # dependency
     )
-}
+endif()
 
 add_warpx_test(
     test_2d_theta_implicit_planar_pinch  # name