zstd.1: Remove superfluous *not* in description of `--long[=#]`

Resolves: https://github.com/facebook/zstd/issues/3101

diff --git a/programs/zstd.1.md b/programs/zstd.1.md
index 49554ca11fd5c0372f499a628d2d34ab2408d2b6..3901b58dbdfa0dde0fff82247bbee8368e27389e 100644 (file)
--- a/programs/zstd.1.md
+++ b/programs/zstd.1.md
@@ -139,7 +139,7 @@ the last one takes effect.
     _note_ : at the time of this writing, `--adapt` can remain stuck at low speed
     when combined with multiple worker threads (>=2).
 * `--long[=#]`:
-    enables long distance matching with `#` `windowLog`, if not `#` is not
+    enables long distance matching with `#` `windowLog`, if `#` is not
     present it defaults to `27`.
     This increases the window size (`windowLog`) and memory usage for both the
     compressor and decompressor.