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-rw-r--r--main.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/main.c b/main.c
index 0428c84..037aa5e 100644
--- a/main.c
+++ b/main.c
@@ -73,8 +73,8 @@ struct { const char * from; const char * to; } const known_extensions[] = {
struct Lzma_options
{
- int dictionary_size; /* 4KiB..512MiB */
- int match_len_limit; /* 5..273 */
+ int dictionary_size; /* 4 KiB .. 512 MiB */
+ int match_len_limit; /* 5 .. 273 */
};
enum Mode { m_compress, m_decompress, m_test };
@@ -104,7 +104,7 @@ static void show_help( void )
" -m, --match-length=<bytes> set match length limit in bytes [36]\n"
" -o, --output=<file> if reading stdin, place the output into <file>\n"
" -q, --quiet suppress all messages\n"
- " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8MiB]\n"
+ " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8 MiB]\n"
" -t, --test test compressed file integrity\n"
" -v, --verbose be verbose (a 2nd -v gives more)\n"
" -1 .. -9 set compression level [default 6]\n"
@@ -117,7 +117,8 @@ static void show_help( void )
"The bidimensional parameter space of LZMA can't be mapped to a linear\n"
"scale optimal for all files. If your files are large, very repetitive,\n"
"etc, you may need to use the --match-length and --dictionary-size\n"
- "options directly to achieve optimal performance.\n"
+ "options directly to achieve optimal performance. For example, -9m64\n"
+ "usually compresses executables more (and faster) than -9.\n"
"\nExit status: 0 for a normal exit, 1 for environmental problems (file\n"
"not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n"
"invalid input file, 3 for an internal consistency error (eg, bug) which\n"