Nonchalantly add accidentally omitted curly braces.

We have seen occurences where even though the log files (and the tests
that depend on the log file) seem to strip out system paths correctly,
bit "somehow" the behaviour of LLDB didn't quite match up what was
shown in the log file.

rdar://76217088

Author: adrian-prantl

lldb/source/Plugins/TypeSystem/Swift/SwiftASTContext.cpp

@@ -2197,14 +2197,15 @@ lldb::TypeSystemSP SwiftASTContext::CreateInstance(lldb::LanguageType language,
                 // system. These modules must be imported from the
                 // SDK instead.
                 if (!StringRef(parent_path).startswith("/System/Library") &&
-                    !IsDeviceSupport(parent_path.c_str()))
+                    !IsDeviceSupport(parent_path.c_str())) {
                   LOG_PRINTF(LIBLLDB_LOG_TYPES,
                              "process_one_module(\"%s\") adding framework path "
                              "\"%s\".",
                              module_file.GetFilename().AsCString(""),
                              framework_path.c_str());
                   framework_search_paths.push_back(
                       {std::move(parent_path), /*system*/ false});
+                }
               }
             }
           }