fixed errors in groovy code

release/Magarena/scripts/Battlegrace_Angel.groovy

@@ -9,7 +9,7 @@
                     player,
                     creature,
                     this,
-                    creature+" gains lifelink until end of turn."
+                    "RN gains lifelink until end of turn."
                 ):
                 MagicEvent.NONE;
         }

release/Magarena/scripts/Heroes__Reunion.groovy

@@ -6,7 +6,7 @@
                 cardOnStack,
                 MagicTargetChoice.POS_TARGET_PLAYER,
                 this,
-                "Target player$ gains 7 life."
+                'Target player$ gains 7 life.'
             );
         }
         @Override

release/Magarena/scripts/Pierce_Strider.groovy

@@ -7,7 +7,7 @@
                 player,
                 MagicTargetChoice.TARGET_OPPONENT,
                 this,
-                "Target opponent$ loses 3 life."
+                'Target opponent$ loses 3 life.'
             );
         }
         

release/Magarena/scripts/Seer_s_Sundial.groovy

@@ -9,7 +9,7 @@
                     new MagicPayManaCostChoice(MagicManaCost.create("{2}"))
                 ),
                 this,
-                "You may$ pay {2}$. If you do, draw a card."
+                'You may$ pay {2}$. If you do, draw a card.'
             );
         }
         

release/Magarena/scripts/Stonebrow__Krosan_Hero.groovy

@@ -10,7 +10,7 @@
                     player,
                     creature,
                     this,
-                    creature + " gets +2/+2 until end of turn."
+                    "RN gets +2/+2 until end of turn."
                 ):
                 MagicEvent.NONE;
         }