Shorten some helptext

src/oclHashcat.c

@@ -384,7 +384,7 @@ const char *USAGE_BIG[] =
   "       --bitmap-max=NUM              Maximum number of bits allowed for bitmaps",
   "       --cpu-affinity=STR            Locks to CPU devices, seperate with comma",
   "  -d,  --opencl-devices=STR          OpenCL devices to use, separate with comma",
-  "       --opencl-platform=NUM         OpenCL platform to use, in case multiple OpenCL platforms are present",
+  "       --opencl-platform=NUM         OpenCL platform to use, in case multiple platforms are present",
   "  -w,  --workload-profile=NUM        Enable a specific workload profile, see references below",
   "  -n,  --kernel-accel=NUM            Workload tuning: 1, 8, 40, 80, 160",
   "  -u,  --kernel-loops=NUM            Workload fine-tuning: 8 - 1024",