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/Utility/SharingPtr.cpp b/lldb/source/Utility/SharingPtr.cpp
index cf32b21..bdaedfb 100644
--- a/lldb/source/Utility/SharingPtr.cpp
+++ b/lldb/source/Utility/SharingPtr.cpp
@@ -11,8 +11,8 @@
 
 #if defined(ENABLE_SP_LOGGING)
 
-// If ENABLE_SP_LOGGING is defined, then log all shared pointer assignments
-// and allow them to be queried using a pointer by a call to:
+// If ENABLE_SP_LOGGING is defined, then log all shared pointer assignments and
+// allow them to be queried using a pointer by a call to:
 #include <assert.h>
 #include <execinfo.h>
 
@@ -96,8 +96,8 @@
 namespace lldb {
 
 void dump_sp_refs(void *ptr) {
-  // Use a specially crafted call to "track_sp" which will
-  // dump info on all live shared pointers that reference "ptr"
+  // Use a specially crafted call to "track_sp" which will dump info on all
+  // live shared pointers that reference "ptr"
   track_sp(NULL, ptr, 0);
 }
 }