Fix Style/NonNilCheck offenses

There were 8 occurrences of `!nil?` and 4 of `!= nil`. This change will
standardize the usage of non-nil checks

3 files changed, 4 insertions, 4 deletions

diff --git a/lib/axlsx/drawing/d_lbls.rb b/lib/axlsx/drawing/d_lbls.rb
index 8965599c..7e3936cc 100644
--- a/lib/axlsx/drawing/d_lbls.rb
+++ b/lib/axlsx/drawing/d_lbls.rb
@@ -76,7 +76,7 @@ module Axlsx
       str << '<c:dLbls>'
       instance_vals = Axlsx.instance_values_for(self)
       %w(d_lbl_pos show_legend_key show_val show_cat_name show_ser_name show_percent show_bubble_size show_leader_lines).each do |key|
-        next unless instance_vals.key?(key) && instance_vals[key] != nil
+        next unless instance_vals.key?(key) && !instance_vals[key].nil?
 
         str << "<c:#{Axlsx::camel(key, false)} val='#{instance_vals[key]}' />"
       end
diff --git a/lib/axlsx/workbook/worksheet/col.rb b/lib/axlsx/workbook/worksheet/col.rb
index 539a6007..ff942d32 100644
--- a/lib/axlsx/workbook/worksheet/col.rb
+++ b/lib/axlsx/workbook/worksheet/col.rb
@@ -114,7 +114,7 @@ module Axlsx
       # current @width value.
       # TODO!!!
       # Axlsx.validate_unsigned_numeric(v) unless v == nil
-      @custom_width = @best_fit = v != nil
+      @custom_width = @best_fit = !v.nil?
       @width = v.nil? ? v : [v, MAX_WIDTH].min
     end
 
diff --git a/lib/axlsx/workbook/worksheet/page_setup.rb b/lib/axlsx/workbook/worksheet/page_setup.rb
index 0bd0cdb8..6fc8ccba 100644
--- a/lib/axlsx/workbook/worksheet/page_setup.rb
+++ b/lib/axlsx/workbook/worksheet/page_setup.rb
@@ -225,8 +225,8 @@ module Axlsx
     # We treat any page set up that has a value set for fit_to_width or fit_to_height value as fit_to_page.
     # @return [Boolean]
     def fit_to_page?
-      # is there some better what to express this?
-      (fit_to_width != nil || fit_to_height != nil)
+      # is there some better way to express this?
+      (!fit_to_width.nil? || !fit_to_height.nil?)
     end
 
     # Serializes the page settings element.