corrected a typo in a comment
@@ -937,7 +937,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
#endif
/*
- * We don't support compression with DTLS right now: is many records come
+ * We don't support compression with DTLS right now: if many records come
* in the same datagram, uncompressing one could overwrite the next one.
* We don't want to add complexity for handling that case unless there is
* an actual need for it.
