Fix Layout/EmptyLineBetweenDefs offenses

```
rubocop --only Layout/EmptyLineBetweenDefs -a
```

2 files changed, 4 insertions, 0 deletions

diff --git a/lib/axlsx/stylesheet/color.rb b/lib/axlsx/stylesheet/color.rb
index 32f18063..d7168ee7 100644
--- a/lib/axlsx/stylesheet/color.rb
+++ b/lib/axlsx/stylesheet/color.rb
@@ -47,6 +47,7 @@ module Axlsx
 
      # @see auto
     def auto=(v) Axlsx::validate_boolean v; @auto = v end
+
     # @see color
     def rgb=(v)
       Axlsx::validate_string(v)
@@ -56,6 +57,7 @@ module Axlsx
       raise ArgumentError, "Invalid color rgb value: #{v}." unless v.match(/[0-9A-F]{8}/)
       @rgb = v
     end
+
     # @see tint
     def tint=(v) Axlsx::validate_float v; @tint = v end
 
diff --git a/lib/axlsx/stylesheet/font.rb b/lib/axlsx/stylesheet/font.rb
index 8a52c810..4011f888 100644
--- a/lib/axlsx/stylesheet/font.rb
+++ b/lib/axlsx/stylesheet/font.rb
@@ -119,6 +119,7 @@ module Axlsx
     def b=(v) Axlsx::validate_boolean v; @b = v end
     # @see i
     def i=(v) Axlsx::validate_boolean v; @i = v end
+
     # @see u
     def u=(v)
       v = :single if (v == true || v == 1 || v == :true || v == 'true')
@@ -126,6 +127,7 @@ module Axlsx
       Axlsx::validate_cell_u v
       @u = v
     end
+
     # @see strike
     def strike=(v) Axlsx::validate_boolean v; @strike = v end
     # @see outline