Fixed non-standard doc strings in gen_robot_valid.py.

Change-Id: Idc43d8538ee783d1ff5426bad0bd722cda7d5f21
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/lib/gen_robot_valid.py b/lib/gen_robot_valid.py
index 8292bb5..08597f9 100755
--- a/lib/gen_robot_valid.py
+++ b/lib/gen_robot_valid.py
@@ -17,8 +17,9 @@
                  valid_values=[]):
 
     r"""
-    rprint stands for "Robot Valid Value".  This function is the robot wrapper
-    for gen_robot_print.svalid_value.
+    Validate a robot value.
+
+    This function is the robot wrapper for gen_robot_print.svalid_value.
 
     Description of arguments:
     var_name                        The name of the variable whose value is to
@@ -91,8 +92,9 @@
 def rvalid_integer(var_name):
 
     r"""
-    rprint stands for "Robot Valid Integer".  This function is the robot
-    wrapper for gen_robot_print.svalid_integer.
+    Validate a robot integer.
+
+    This function is the robot wrapper for gen_robot_print.svalid_integer.
 
     Description of arguments:
     var_name                        The name of the variable whose value is to