Reflow paragraphs in comments.

This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.

FYI, the script I used was:

import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
  header = ""
  text = ""
  comment = re.compile(r'^( *//) ([^ ].*)$')
  special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
  for line in f:
      match = comment.match(line)
      if match and not special.match(match.group(2)):
          # skip intentionally short comments.
          if not text and len(match.group(2)) < 40:
              out.write(line)
              continue

          if text:
              text += " " + match.group(2)
          else:
              header = match.group(1)
              text = match.group(2)

          continue

      if text:
          filled = textwrap.wrap(text, width=(78-len(header)),
                                 break_long_words=False)
          for l in filled:
              out.write(header+" "+l+'\n')
              text = ""

      out.write(line)

os.rename(tmp, sys.argv[1])

Differential Revision: https://reviews.llvm.org/D46144

llvm-svn: 331197
diff --git a/lldb/source/DataFormatters/StringPrinter.cpp b/lldb/source/DataFormatters/StringPrinter.cpp
index 84143a5..89d7a95 100644
--- a/lldb/source/DataFormatters/StringPrinter.cpp
+++ b/lldb/source/DataFormatters/StringPrinter.cpp
@@ -26,9 +26,8 @@
 using namespace lldb_private;
 using namespace lldb_private::formatters;
 
-// we define this for all values of type but only implement it for those we care
-// about
-// that's good because we get linker errors for any unsupported type
+// we define this for all values of type but only implement it for those we
+// care about that's good because we get linker errors for any unsupported type
 template <lldb_private::formatters::StringPrinter::StringElementType type>
 static StringPrinter::StringPrinterBufferPointer<>
 GetPrintableImpl(uint8_t *buffer, uint8_t *buffer_end, uint8_t *&next);
@@ -163,8 +162,8 @@
         (unsigned char)*(buffer + 2), (unsigned char)*(buffer + 3));
     break;
   default:
-    // this is probably some bogus non-character thing
-    // just print it as-is and hope to sync up again soon
+    // this is probably some bogus non-character thing just print it as-is and
+    // hope to sync up again soon
     retval = {buffer, 1};
     next = buffer + 1;
     return retval;
@@ -223,9 +222,9 @@
   return retval;
 }
 
-// Given a sequence of bytes, this function returns:
-// a sequence of bytes to actually print out + a length
-// the following unscanned position of the buffer is in next
+// Given a sequence of bytes, this function returns: a sequence of bytes to
+// actually print out + a length the following unscanned position of the buffer
+// is in next
 static StringPrinter::StringPrinterBufferPointer<>
 GetPrintable(StringPrinter::StringElementType type, uint8_t *buffer,
              uint8_t *buffer_end, uint8_t *&next) {
@@ -321,8 +320,7 @@
           (llvm::UTF8 *)utf8_data_buffer_sp->GetBytes();
     } else {
       // just copy the pointers - the cast is necessary to make the compiler
-      // happy
-      // but this should only happen if we are reading UTF8 data
+      // happy but this should only happen if we are reading UTF8 data
       utf8_data_ptr = const_cast<llvm::UTF8 *>(
           reinterpret_cast<const llvm::UTF8 *>(data_ptr));
       utf8_data_end_ptr = const_cast<llvm::UTF8 *>(
@@ -344,8 +342,8 @@
     }
 
     // since we tend to accept partial data (and even partially malformed data)
-    // we might end up with no NULL terminator before the end_ptr
-    // hence we need to take a slower route and ensure we stay within boundaries
+    // we might end up with no NULL terminator before the end_ptr hence we need
+    // to take a slower route and ensure we stay within boundaries
     for (; utf8_data_ptr < utf8_data_end_ptr;) {
       if (zero_is_terminator && !*utf8_data_ptr)
         break;
@@ -472,8 +470,8 @@
   }
 
   // since we tend to accept partial data (and even partially malformed data)
-  // we might end up with no NULL terminator before the end_ptr
-  // hence we need to take a slower route and ensure we stay within boundaries
+  // we might end up with no NULL terminator before the end_ptr hence we need
+  // to take a slower route and ensure we stay within boundaries
   for (uint8_t *data = buffer_sp->GetBytes(); *data && (data < data_end);) {
     if (escape_non_printables) {
       uint8_t *next_data = nullptr;