[lldb] ensure comment conforms to LLVM guidelines (llvm#170533)

This patch is a follow up to
llvm#170471.

Author: charles-zablit

lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp

@@ -82,7 +82,7 @@ ProcessSP ProcessWindows::CreateInstance(lldb::TargetSP target_sp,
                                          const FileSpec *crash_file_path,
                                          bool can_connect) {
   if (crash_file_path)
-    return nullptr; // Cannot create a Windows process from a crash_file
+    return nullptr; // Cannot create a Windows process from a crash_file.
   return ProcessSP(new ProcessWindows(target_sp, listener_sp));
 }
 

lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp

@@ -211,7 +211,7 @@ lldb::ProcessSP ProcessGDBRemote::CreateInstance(
     lldb::TargetSP target_sp, ListenerSP listener_sp,
     const FileSpec *crash_file_path, bool can_connect) {
   if (crash_file_path)
-    return nullptr; // Cannot create a GDBRemote process from a crash_file
+    return nullptr; // Cannot create a GDBRemote process from a crash_file.
   return lldb::ProcessSP(new ProcessGDBRemote(target_sp, listener_sp));
 }