Fix typos in comments.
diff --git a/src/common/mythread.h b/src/common/mythread.h
index 4a88547..7a68da8 100644
--- a/src/common/mythread.h
+++ b/src/common/mythread.h
@@ -25,7 +25,7 @@
#ifdef MYTHREAD_ENABLED
////////////////////////////////////////
-// Shared betewen all threading types //
+// Shared between all threading types //
////////////////////////////////////////
// Locks a mutex for a duration of a block.
diff --git a/src/liblzma/check/crc32_fast.c b/src/liblzma/check/crc32_fast.c
index 94da855..3de0263 100644
--- a/src/liblzma/check/crc32_fast.c
+++ b/src/liblzma/check/crc32_fast.c
@@ -20,7 +20,7 @@
#include "crc_macros.h"
-// If you make any changes, do some bench marking! Seemingly unrelated
+// If you make any changes, do some benchmarking! Seemingly unrelated
// changes can very easily ruin the performance (and very probably is
// very compiler dependent).
extern LZMA_API(uint32_t)
