removed comment.char option from documentation

Author: badasahog

man/fread.Rd

@@ -241,7 +241,7 @@ system.time(DF1 <- read.csv("test.csv",stringsAsFactors=FALSE))
 # 3.9 sec (immediate repeat is faster, varies)
 
 system.time(DF2 <- read.table("test.csv",header=TRUE,sep=",",quote="",
-    stringsAsFactors=FALSE,comment.char="",nrows=n,
+    stringsAsFactors=FALSE,nrows=n,
     colClasses=c("integer","integer","numeric",
                  "character","numeric","integer")))
 # 1.2 sec (consistently). All known tricks and known nrows, see references.

src/fread.c

@@ -2762,7 +2762,7 @@ int freadMain(freadMainArgs _args) {
           DTWARN(_("Stopped early on line %"PRIu64". Expected %d fields but found %d. Consider fill=%d or even more based on your knowledge of the input file. Use fill=Inf for reading the whole file for detecting the number of fields. First discarded non-empty line: <<%s>>"),
           (uint64_t)DTi+row1line, ncol, tt, tt, strlim(skippedFooter,500));
         } else {
-          DTWARN(_("Stopped early on line %"PRIu64". Expected %d fields but found %d. Consider fill=TRUE and comment.char=. First discarded non-empty line: <<%s>>"),
+          DTWARN(_("Stopped early on line %"PRIu64". Expected %d fields but found %d. Consider fill=TRUE. First discarded non-empty line: <<%s>>"),
           (uint64_t)DTi+row1line, ncol, tt, strlim(skippedFooter,500));
         }
       }