[NFC] Remove 3 redundant spaces (#1414)

Author: wenju-he

OpenCL_C.txt

@@ -5634,7 +5634,7 @@ endif::cl_khr_fp16[]
 The following table describes the following functions:
 
   * A subset of functions from <<table-builtin-math,Built-in Scalar and Vector
-    Argument Math Functions>> that are defined with the half_ prefix .
+    Argument Math Functions>> that are defined with the half_ prefix.
     These functions are implemented with a minimum of 10-bits of accuracy,
     i.e. the maximum error value \<= 8192 ulp.
   * A subset of functions from <<table-builtin-math,Built-in Scalar and Vector
@@ -6779,7 +6779,7 @@ ifdef::cl_khr_fp16[]
   int *islessgreater*(half _x_, half _y_) +
   short__n__ *islessgreater*(half__n__ _x_, half__n__ _y_)
 endif::cl_khr_fp16[]
-    | Returns the component-wise compare of (_x_ < _y_) \|\| (_x_ > _y_) .
+    | Returns the component-wise compare of (_x_ < _y_) \|\| (_x_ > _y_).
 | |
 | int *isfinite*(float) +
   int__n__ *isfinite*(float__n__) +
@@ -13595,7 +13595,7 @@ host enqueues the first instance of the nd-range kernel (dp_func_A).
 The kernel dp_func_A will launch a kernel (evaluate_dp_work_A) that will
 determine if new nd-range work needs to be performed.
 If new nd-range work does need to be performed, then evaluate_dp_work_A will
-enqueue a new instance of dp_func_A .
+enqueue a new instance of dp_func_A.
 This process is repeated until all the work is completed.
 
 [source,opencl_c]