* \brief Calculate memory usage of lzma_index
*
* On disk, the size of the Index field depends on both the number of Records
- * stored and how big values the Records store (due to variable-length integer
+ * stored and the size of the Records (due to variable-length integer
* encoding). When the Index is kept in lzma_index structure, the memory usage
* depends only on the number of Records/Blocks stored in the Index(es), and
* in case of concatenated lzma_indexes, the number of Streams. The size in
* RAM is almost always significantly bigger than in the encoded form on disk.
*
- * This function calculates an approximate amount of memory needed hold
+ * This function calculates an approximate amount of memory needed to hold
* the given number of Streams and Blocks in lzma_index structure. This
* value may vary between CPU architectures and also between liblzma versions
* if the internal implementation is modified.