add missing space before unit

Author: Error-42

src/format.rs

@@ -109,7 +109,7 @@ const UNITS: &[(Duration, &str, &str)] = &[
 impl fmt::Display for HumanBytes {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match NumberPrefix::binary(self.0 as f64) {
-            NumberPrefix::Standalone(number) => write!(f, "{number:.0}B"),
+            NumberPrefix::Standalone(number) => write!(f, "{number:.0} B"),
             NumberPrefix::Prefixed(prefix, number) => write!(f, "{number:.2} {prefix}B"),
         }
     }
@@ -118,7 +118,7 @@ impl fmt::Display for HumanBytes {
 impl fmt::Display for DecimalBytes {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match NumberPrefix::decimal(self.0 as f64) {
-            NumberPrefix::Standalone(number) => write!(f, "{number:.0}B"),
+            NumberPrefix::Standalone(number) => write!(f, "{number:.0} B"),
             NumberPrefix::Prefixed(prefix, number) => write!(f, "{number:.2} {prefix}B"),
         }
     }
@@ -127,7 +127,7 @@ impl fmt::Display for DecimalBytes {
 impl fmt::Display for BinaryBytes {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match NumberPrefix::binary(self.0 as f64) {
-            NumberPrefix::Standalone(number) => write!(f, "{number:.0}B"),
+            NumberPrefix::Standalone(number) => write!(f, "{number:.0} B"),
             NumberPrefix::Prefixed(prefix, number) => write!(f, "{number:.2} {prefix}B"),
         }
     }

tests/render.rs

@@ -939,7 +939,7 @@ fn progress_bar_terminal_wrap() {
         r#" Downloading ⠁ [00:0
 0:00] [-------------
 --------------------
--------] 0B/0B"#
+-------] 0 B/0 B"#
     );
 
     let new = min(downloaded + 223211, total_size);