Simplify logging dependencies

coreutils-common/pom.xml

@@ -73,16 +73,16 @@ that you distribute must include a readable copy of the "NOTICE" text file.
 			<artifactId>config</artifactId>
 		</dependency>
 		
-		<!-- SLF4J logging framework -->
+		<!-- Logback and SLF4J logging framework -->
+		<dependency>
+			<groupId>ch.qos.logback</groupId>
+			<artifactId>logback-classic</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
 			<scope>provided</scope>
 		</dependency>
-		<dependency> <!-- SLF4J Simple binding -->
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-simple</artifactId>
-			<scope>test</scope>
-		</dependency>
 	</dependencies>
 </project>

pom.xml

@@ -165,7 +165,7 @@ that you distribute must include a readable copy of the "NOTICE" text file.
 					<exclusion> <!-- use the SLF4J version included with the bridges -->
 						<groupId>org.slf4j</groupId>
 						<artifactId>slf4j-api</artifactId>
-					</exclusion>
+					</exclusion>					
 				</exclusions>
 			</dependency>
 			
@@ -185,11 +185,6 @@ that you distribute must include a readable copy of the "NOTICE" text file.
 				<artifactId>log4j-over-slf4j</artifactId>
 				<version>${org.slf4j.version}</version>
 			</dependency>
-			<dependency> <!-- SLF4J Simple binding -->
-				<groupId>org.slf4j</groupId>
-				<artifactId>slf4j-simple</artifactId>
-				<version>${org.slf4j.version}</version>
-			</dependency>
 			
 			<!-- JUnit unit testing framework for Java -->
 			<dependency>