formula_desc: handle nil first character.

2020-07-07 11:30:24 +01:00 · 2020-07-07 11:30:24 +01:00 · 720a00e68e
commit 720a00e68e
parent f951ea83d4
1 changed files with 1 additions and 1 deletions
--- a/Library/Homebrew/rubocops/formula_desc.rb
+++ b/Library/Homebrew/rubocops/formula_desc.rb
@ -87,7 +87,7 @@ module RuboCop
            first_word = string_content(node).split.first
            unless VALID_LOWERCASE_WORDS.include?(first_word)
              first_char = first_word.to_s.chars.first
-              correction.sub!(/^(['"]?)([a-z])/, "\\1#{first_char.upcase}")
+              correction.sub!(/^(['"]?)([a-z])/, "\\1#{first_char.upcase}") if first_char
            end
            correction.sub!(/^(['"]?)an?\s/i, "\\1")
            correction.gsub!(/(ommand ?line)/i, "ommand-line")