don't swallow backslash characters in test output

bin/tests/system/conf.sh.common

@@ -95,6 +95,8 @@ else
     COLOR_WARN=''
 fi
 
+SYSTESTDIR="`basename $PWD`"
+
 if type printf > /dev/null 2>&1
 then
 	echofail () {
@@ -115,6 +117,23 @@ then
 	echoend () {
 		printf "${COLOR_END}%s${COLOR_NONE}\n" "$*"
 	}
+	echo_i() {
+	    printf '%s\n' "$*" | while read -r __LINE ; do
+	       echoinfo "I:$SYSTESTDIR:$__LINE"
+	    done
+	}
+
+	echo_ic() {
+	    printf '%s\n' "$*" | while read -r __LINE ; do
+	       echoinfo "I:$SYSTESTDIR:  $__LINE"
+	    done
+	}
+
+	echo_d() {
+	    printf '%s\n' "$*" | while read -r __LINE ; do
+	       echoinfo "D:$SYSTESTDIR:$__LINE"
+	    done
+	}
 else
 	echofail () {
 		echo "$*"
@@ -134,36 +153,34 @@ else
 	echoend () {
 		echo "$*"
 	}
-fi
-
-SYSTESTDIR="`basename $PWD`"
 
 	echo_i() {
-    echo "$@" | while read __LINE ; do
+	    echo "$@" | while read -r __LINE ; do
 	       echoinfo "I:$SYSTESTDIR:$__LINE"
 	    done
 	}
 
 	echo_ic() {
-    echo "$@" | while read __LINE ; do
+	    echo "$@" | while read -r __LINE ; do
-       echoinfo "I:$SYSTESTDIR:  $__LINE"
-    done
-}
-
-cat_i() {
-    while read __LINE ; do
 	       echoinfo "I:$SYSTESTDIR:  $__LINE"
 	    done
 	}
 
 	echo_d() {
-    echo "$@" | while read __LINE ; do
+	    echo "$@" | while read -r __LINE ; do
 	       echoinfo "D:$SYSTESTDIR:$__LINE"
 	    done
 	}
+fi
+
+cat_i() {
+    while read -r __LINE ; do
+       echoinfo "I:$SYSTESTDIR:$__LINE"
+    done
+}
 
 cat_d() {
-    while read __LINE ; do
+    while read -r __LINE ; do
        echoinfo "D:$SYSTESTDIR:$__LINE"
     done
 }