Compact whitespace when removing flags

This prevents multiple calls to flag-modifying ENV methods from
resulting in large amounts of consecutive spaces.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 4c6c5fd47..fd87ffeea 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -409,6 +409,7 @@ Please take one of the following actions:
     [*key].each do |key|
       next if self[key].nil?
       self[key] = self[key].sub value, '' # can't use sub! on ENV
+      self[key] = self[key].gsub /\s+/, ' ' # compact whitespace
       self[key] = nil if self[key].empty? # keep things clean
     end
   end