fixed missing blocks in bar chars library

HISTORY.md

@@ -10,12 +10,14 @@
     * prevent Chrome from crashing when using serial ports on a Mac, thanks, Dariusz!
     * fixed missing blocks in variadic reporters library, thanks, Brian!
     * fixed an infinite loop in the signada library, thanks, Bernat!
+    * fixed missing blocks in bar chars library
 * **Documentation Updates:**
 * **Translation Updates:**
 
 ### 2022-02-08
 * signade library: fixed cached values being stuck forever in edge case, thanks, Bernat!
 * variadic reporters library: fixed blocks that apparently were "lost in translation" before, thanks, Brian!
+* fixed PIPE in bar-charts library
 
 ### 2022-02-07
 * lists: fixed JSON encoding for nested lists