Fix line endings in msi

Fixes sbt#6717

Author: eed3si9n

.gitattributes

@@ -1,3 +1,7 @@
+sbt text eol=lf
+*.sh text eol=lf
+launcher-package/src/windows/sbt text eol=lf
+
 # Exclude contraband generated files from diff (by default - you can see it if you want)
 **/contraband-scala/**/* -diff merge=ours
 **/contraband-scala/**/* linguist-generated=true

launcher-package/src/windows/sbt

@@ -36,3 +36,4 @@ else
   # Use Jansi to intercept ANSI sequences
   "$JAVA_CMD" -Dsbt.log.format=true $JAVA_OPTS $SBT_OPTS -cp "$WDIR/sbt-launch.jar" xsbt.boot.Boot "$@"
 fi
+