install_github errors on description

[mkoohafkan]

I am unable to install github packages using install_github since the latest update. I am getting errors that seem to be related to line continuations:

Error in read.dcf(path) : 
  Found continuation line starting '    R (>= 3.2.0), ...' at begin of record.

(here one example of an offending description file)

These packages have installed without issue for years, across various versions of devtools.

Cloning the package repository and installing from the local repo with devtools::install works without issue.

session Info:

R version 3.5.1 (2018-07-02)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 16299)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.0        ps_1.2.1          prettyunits_1.0.2 rprojroot_1.3-2  
 [5] digest_0.6.18     crayon_1.3.4      withr_2.1.2       assertthat_0.2.0 
 [9] R6_2.3.0          backports_1.1.2   magrittr_1.5      rlang_0.3.0.1    
[13] cli_1.0.1         curl_3.2          fs_1.2.6          remotes_2.0.2    
[17] callr_3.0.0       desc_1.2.0        devtools_2.0.1    tools_3.5.1      
[21] glue_1.3.0        pkgload_1.0.2     compiler_3.5.1    processx_3.2.0   
[25] base64enc_0.1-3   pkgbuild_1.0.2    sessioninfo_1.1.1 memoise_1.1.0    
[29] usethis_1.4.0