rubocop: fix various style issues.

app/logical/reports/upload_tags.rb

@@ -47,6 +47,5 @@ module Reports
     def removed_tags
       removed_tags_array.join(' ')
     end
-
   end
 end

app/logical/reports/uploads.rb

@@ -14,7 +14,7 @@ module Reports
       else
         @max_date = Date.today
       end
-      
+
       @queries = queries.to_s.split(/,\s*/).join(",")
     end
 

app/logical/reports/user_promotions.rb

@@ -56,9 +56,9 @@ module Reports
         return 0
       end
 
-      z = Statistics2.pnormaldist(1-(1-confidence)/2)
-      phat = 1.0*pos/n
-      100 * (phat + z*z/(2*n) - z * Math.sqrt((phat*(1-phat)+z*z/(4*n))/n))/(1+z*z/n)
+      z = Statistics2.pnormaldist(1 - (1 - confidence) / 2)
+      phat = 1.0 * pos / n
+      100 * (phat + z * z / (2 * n) - z * Math.sqrt((phat * (1 - phat) + z * z / (4 * n)) / n)) / (1 + z * z / n)
     end
 
     def self.min_time