fix substr help (fixes #21192)

jef-n · jef-n · commit 2bed7ab00186 · 2019-02-07T11:17:57.000+01:00
diff --git a/resources/function_help/json/substr b/resources/function_help/json/substr
@@ -3,11 +3,11 @@
   "type": "function",
   "description": "Returns a part of a string.",
   "arguments": [ {"arg":"string","description":"the full input string"},
-  {"arg":"start","description":"integer representing start position to extract from; if start is negative, the return string will begin at the end of the string minus the start value"},
+  {"arg":"start","description":"integer representing start position to extract beginning with 1; if start is negative, the return string will begin at the end of the string minus the start value"},
   {"arg":"length","optional":true,"description":"integer representing length of string to extract; if length is negative, the return string will omit the given length of characters from the end of the string"}
   ],
   "examples": [ { "expression":"substr('HELLO WORLD',3,5)", "returns":"'LLO W'"},
-                { "expression":"substr('HELLO WORLD',6)", "returns":"'WORLD'"},
+                { "expression":"substr('HELLO WORLD',6)", "returns":"' WORLD'"},
                 { "expression":"substr('HELLO WORLD',-5)","returns":"'WORLD'"},
                 { "expression":"substr('HELLO',3,-1)", "returns":"'LL'"},
                 { "expression":"substr('HELLO WORLD',-5,2)","returns":"'WO'"},
