Process completed with exit code 31.

file=R/utils_format.R,line=483,col=44,[function_argument_linter] Arguments without defaults should come before arguments with defaults.

file=R/utils_format.R,line=563,col=9,[nzchar_linter] Instead of comparing nchar(x) to 0, use nzchar(). Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=571,col=9,[nzchar_linter] Instead of comparing nchar(x) to 0, use nzchar(). Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=579,col=9,[nzchar_linter] Instead of comparing nchar(x) to 0, use nzchar(). Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=834,col=24,[nzchar_linter] Instead of comparing nchar(x) to 0, use nzchar(). Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=907,col=22,[nzchar_linter] Instead of comparing strings to "", use nzchar(). Note that if x is a factor, you'll have use as.character() to replicate an implicit conversion that happens in x == "". Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=1000,col=7,[object_overwrite_linter] 'col' is an exported object from package 'base'. Avoid re-using such symbols.

file=R/utils_format.R,line=1001,col=12,[nzchar_linter] Instead of comparing strings to "", use nzchar(). Note that if x is a factor, you'll have use as.character() to replicate an implicit conversion that happens in x == "". Whenever missing data is possible, please take care to use nzchar(., keepNA = TRUE); nzchar(NA) is TRUE by default.

file=R/utils_format.R,line=1025,col=121,[line_length_linter] Lines should not be more than 120 characters. This line is 126 characters.