Fix typos found by codespell

- Typos were found by codespell v1.17.0.dev0 (commit 44fea6d)
- Command used:
  codespell -q 2 \
  -L ba,bloc,blocs,doubleclick,dur,fille,frmat,numer,optin,passtime \
  -L pres,strack,te,tim,tre,uint,whn \
  --skip="*.de-DE.resx,./Bwg*,./Freedb,./MusicBrainz,./ProgressODoom" \
  --skip="./ThirdParty"

CUETools.Codecs/LPC.cs

@@ -398,7 +398,7 @@ namespace CUETools.Codecs
 			double* lpc_tmp = stackalloc double[MAX_LPC_ORDER];
 
 			if (max_order > MAX_LPC_ORDER)
-				throw new Exception("wierd");
+				throw new Exception("weird");
 
 			for (int i = 0; i < max_order; i++)
 				lpc_tmp[i] = 0;