Fix spelling in comments in C source files (gprof)

* basic_blocks.c: Fix spelling in comments.
	* cg_arcs.c: Fix spelling in comments.
	* cg_print.c: Fix spelling in comments.
	* corefile.c: Fix spelling in comments.

gprof/ChangeLog

@@ -1,3 +1,10 @@
+2016-11-27  Ambrogino Modigliani  <ambrogino.modigliani@gmail.com>
+
+	* basic_blocks.c: Fix spelling in comments.
+	* cg_arcs.c: Fix spelling in comments.
+	* cg_print.c: Fix spelling in comments.
+	* corefile.c: Fix spelling in comments.
+
 2016-11-22  Ambrogino Modigliani  <ambrogino.modigliani@gmail.com>
 
         * configure: Regenerate.

gprof/basic_blocks.c

@@ -311,7 +311,7 @@ print_exec_counts (void)
    line of a file in sequential order.
 
    Global variable bb_annotate_all_lines enables execution count
-   compression (counts are supressed if identical to the last one)
+   compression (counts are suppressed if identical to the last one)
    and prints counts on all executed lines.  Otherwise, print
    all basic-block execution counts exactly once on the line
    that starts the basic-block.  */

gprof/cg_arcs.c

@@ -660,7 +660,7 @@ cg_assemble (void)
      fractions.  */
   propagate_flags (top_sorted_syms);
 
-  /* Starting from the topological bottom, propogate children times
+  /* Starting from the topological bottom, propagate children times
      up to parents.  */
   cycle_time ();
   for (sym_index = 0; sym_index < symtab.len; ++sym_index)

gprof/cg_print.c

@@ -847,7 +847,7 @@ cg_print_function_ordering (void)
       tmp_arcs_count += arcs[arc_index]->count;
 
       /* Count how many times each parent and child are used up
-	 to our threshhold of arcs (90%).  */
+	 to our threshold of arcs (90%).  */
       if ((double)tmp_arcs_count / (double)total_arcs > 0.90)
 	break;
 

gprof/corefile.c

@@ -847,7 +847,7 @@ core_create_line_syms (void)
      The old way called symtab_finalize before the is_static pass,
      causing a problem since symtab_finalize uses is_static as part of
      its address conflict resolution algorithm.  Since global symbols
-     were prefered over static symbols, and all line symbols were
+     were preferred over static symbols, and all line symbols were
      global at that point, static function names that conflicted with
      their own line numbers (static, but labeled as global) were
      rejected in favor of the line num.