Fix Svn Adapter to be more specific in the workspace check

Now ignores externals declaration itself, of course not the changes in the externals
And ensures that the svn status char like ?, M, A, X, etc is followed by a space.

Author: danez

src/main/groovy/net/researchgate/release/SvnAdapter.groovy

@@ -71,13 +71,20 @@ class SvnAdapter extends BaseScmAdapter {
 		def changes = []
 		def unknown = []
 		out.eachLine { line ->
-			switch (line?.trim()?.charAt(0)) {
-				case '?':
-					unknown << line
-					break
-				default:
-					changes << line
-					break
+			line = line.trim()
+			if (line.length() >= 2 && line.charAt(1) == ' ' as char) {
+				switch (line.charAt(0)) {
+					case '?':
+                        log.info('Unknown file: ' + line)
+						unknown << line
+						break
+					case 'X': // ignore externals declaration
+						break
+					default:
+                        log.info('Changed file: ' + line)
+						changes << line
+						break
+				}
 			}
 		}
 		if (changes) {