common verb conjugation for all tr command descriptions

pages/common/tr.md

@@ -2,11 +2,11 @@
 
 > translate characters - run replacements based on single characters and character sets
 
-- Replace all occurrences of a character in a file, and prints the result
+- Replace all occurrences of a character in a file, and print the result
 
 `tr {{find_characters}} {{replace_characters}} < {{filename}}`
 
-- Maps each character of the first set to the corresponding character of the second set.
+- Map each character of the first set to the corresponding character of the second set.
 
 `tr 'abcd' 'jkmn' < {{filename}}`
 
@@ -14,14 +14,14 @@
 
 `tr -d '{{input_characters}}'`
 
-- Compresses a series of identical characters to a single character.
+- Compress a series of identical characters to a single character.
 
 `tr -s '\n'`
 
-- Translate the contents of the file to upper-case, prints result.
+- Translate the contents of the file to upper-case and print result.
 
 `tr "[:lower:]" "[:upper:]" < {{filename}}`
 
-- Strip out non-printable characters from the file, prints result.
+- Strip out non-printable characters from the file and print result.
 
 `tr -cd "[:print:]" < {{filename}}`