Add unique exit status to the ipa-find* tools when nothing is found

ipa-admintools/ipa-findgroup

@@ -54,7 +54,7 @@ def main():
         groups = groups[1:]
         if counter == 0:
             print "No entries found for", args[1]
-            return 0
+            return 2
 
         for ent in groups:
             attr = ent.attrList()

ipa-admintools/ipa-finduser

@@ -85,7 +85,7 @@ def main():
         users = users[1:]
         if counter == 0:
             print "No entries found for", args[1]
-            return 0
+            return 2
 
         for ent in users:
             attr = ent.attrList()

ipa-admintools/man/ipa-findgroup.1

@@ -31,4 +31,8 @@ The search is a substring search in the name and description attributes.
 
 All entries that match are displayed.
 .SH "EXIT STATUS"
-The exit status is 0 on success, nonzero on error.
+0 if one or more entries were found
+
+1 if an error occurred
+
+2 if no matching entries were found

ipa-admintools/man/ipa-finduser.1

@@ -37,4 +37,8 @@ Display all attributes
 .PP 
 By default the full name, home Directory and login shell and username fields are displayed.
 .SH "EXIT STATUS"
-The exit status is 0 on success, nonzero on error.
+0 if one or more entries were found
+
+1 if an error occurred
+
+2 if no matching entries were found