typo fix

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@50533 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.timestamp/r.timestamp.html

@@ -40,7 +40,7 @@ The general format for absolute values is:
 	     year is 4 digit year
 	     [bc] if present, indicates dates is BC
 	     hour is 0-23 (24 hour clock)
-	     mintue is 0-59
+	     minute is 0-59
 	     second is 0-59.9999 (fractions of second allowed)
 	     timezone is +hhmm or -hhmm (eg, -0600)
 </pre></div>

raster3d/r3.timestamp/r3.timestamp.html

@@ -45,7 +45,7 @@ date(s). See EXAMPLES below.
 	     year is 4 digit year<br>
 	     [bc] if present, indicates dates is BC<br>
 	     hour is 0-23 (24 hour clock)<br>
-	     mintue is 0-59<br>
+	     minute is 0-59<br>
 	     second is 0-59.9999 (fractions of second allowed)<br>
 	     timezone is +hhmm or -hhmm (eg, -0600)<br>
 <br>

vector/v.timestamp/v.timestamp.html

@@ -40,7 +40,7 @@ The general format for absolute values is:
 	     year is 4 digit year
 	     [bc] if present, indicates dates is BC
 	     hour is 0-23 (24 hour clock)
-	     mintue is 0-59
+	     minute is 0-59
 	     second is 0-59.9999 (fractions of second allowed)
 	     timezone is +hhmm or -hhmm (eg, -0600)
 </pre></div>