Fix pantheon.cli.PantheonCommandTest test on Windows (#380)

gradle/versions.gradle

@@ -73,5 +73,6 @@ dependencyManagement {
     dependency 'org.web3j:crypto:4.0.1'
 
     dependency 'org.xerial.snappy:snappy-java:1.1.7.2'
+    dependency 'org.apache.commons:commons-text:1.6'
   }
 }

pantheon/build.gradle

@@ -58,6 +58,7 @@ dependencies {
   testImplementation 'org.assertj:assertj-core'
   testImplementation 'org.awaitility:awaitility'
   testImplementation 'org.mockito:mockito-core'
+  testImplementation 'org.apache.commons:commons-text'
 }
 
 task writeInfoFile(type: ProjectPropertiesFile) {

pantheon/src/test/java/tech/pegasys/pantheon/cli/PantheonCommandTest.java

@@ -54,6 +54,7 @@ import java.util.Optional;
 
 import com.google.common.collect.Lists;
 import com.google.common.io.Resources;
+import org.apache.commons.text.StringEscapeUtils;
 import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Rule;
@@ -251,7 +252,8 @@ public class PantheonCommandTest extends CommandTestAbstract {
     final URL configFile = Resources.getResource("complete_config.toml");
     final Path genesisFile = createFakeGenesisFile();
     final String updatedConfig =
-        Resources.toString(configFile, UTF_8).replaceAll("~/genesis.json", genesisFile.toString());
+        Resources.toString(configFile, UTF_8)
+            .replace("~/genesis.json", escapeTomlString(genesisFile.toString()));
     final Path toml = Files.createTempFile("toml", "");
     Files.write(toml, updatedConfig.getBytes(UTF_8));
 
@@ -1004,4 +1006,8 @@ public class PantheonCommandTest extends CommandTestAbstract {
   private boolean isFullInstantiation() {
     return !Boolean.getBoolean("pantheon.docker");
   }
+
+  private static String escapeTomlString(final String s) {
+    return StringEscapeUtils.escapeJava(s);
+  }
 }