Fix csharpsquid:S2223 issues, #679

Author: paulirwin

src/Lucene.Net.Analysis.Common/Analysis/En/KStemData1.cs

@@ -48,8 +48,10 @@ internal class KStemData1
         private KStemData1()
         {
         }
+
+        // LUCENENET specific - made readonly
         // KStemData1 ... KStemData8 are created from "head_word_list.txt"
-        internal static string[] data = new string[] {
+        internal static readonly string[] data = {
             "aback","abacus","abandon","abandoned","abase",
             "abash","abate","abattoir","abbess","abbey",
             "abbot","abbreviate","abbreviation","abc","abdicate",
@@ -752,4 +754,4 @@ private KStemData1()
             "cascara","case","casebook","casein","casework",
         };
     }
-}
+}

src/Lucene.Net.Analysis.Common/Analysis/En/KStemData2.cs

@@ -47,7 +47,9 @@ internal class KStemData2
         private KStemData2()
         {
         }
-        internal static string[] data = new string[] {
+
+        // LUCENENET specific - made readonly
+        internal static readonly string[] data = {
             "cash","cashew","cashier","cashmere","casing",
             "casino","cask","casket","casque","cassava",
             "casserole","cassette","cassock","cassowary","cast",
@@ -750,4 +752,4 @@ private KStemData2()
             "distal","distance","distant","distantly","distaste",
         };
     }
-}
+}