fix base address hinting in via686a docs

diff -Naur lm_sensors-2.8.8/doc/chips/via686a lm_sensors-2.8.8new/doc/chips/via686a
@@ -23,7 +23,7 @@
 			PCI force; the via686a must still be present in lspci.
 			Don't use this unless the driver complains that the
 			base address is not set.
-			Example: 'modprobe via686a force_addr=0x290'
+			Example: 'modprobe via686a force_addr=0x6000'
 
 
 Description

diff -Naur lm_sensors-2.8.8/prog/detect/sensors-detect lm_sensors-2.8.8new/prog/detect/sensors-detect
@@ -4440,7 +4440,9 @@
         printf "ISA bus address 0x%04x (Busdriver `i2c-isa')\n",
                $data->{isa_addr};
       } else {
-        printf "ISA bus, undetermined address (Busdriver `i2c-isa')\n"
+        print "ISA bus, undetermined address (Busdriver `i2c-isa')\n".
+              "Hint: Try forcing the chip address. Consult the documentation\n".
+              "of particular chip for details and address value.\n";
       }
     }
     printf "    Chip `%s' (confidence: %d)\n",