Use return rather than continue to make bash 4.4 happy.

Otherwise we get this error:

  continue: only meaningful in a 'for', 'while', or 'until' loop

tests/chattr.test

@@ -7,7 +7,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: chattr (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/chgrp.test

@@ -5,7 +5,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: chgrp (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/chown.test

@@ -5,7 +5,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: chown (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/groupadd.test

@@ -7,7 +7,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: groupadd (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/groupdel.test

@@ -8,7 +8,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: groupdel (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/hostname.test

@@ -10,7 +10,7 @@ testing "get" "hostname" "$HOST\n" "" ""
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: groupdel (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/ifconfig.test

@@ -24,7 +24,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: ifconfig (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/losetup.test

@@ -5,7 +5,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: losetup (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/sh.test

@@ -7,7 +7,7 @@
 if [ -z "$(which bash)" ]
 then
   echo "$SHOWSKIP: no bash alias"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi
 

tests/useradd.test

@@ -8,7 +8,7 @@
 if [ "$(id -u)" -ne 0 ]
 then
   echo "$SHOWSKIP: useradd (not root)"
-  continue 2>/dev/null
+  return 2>/dev/null
   exit
 fi